Risks and Uncertainties [Abstract] Concentration Risk [Table] Concentration Risk [Table] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario, Unspecified [Domain] As Reported [Member] Scenario, Previously Reported [Member] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Accounts Receivable, Net, Less Billings in Excess of Costs and Earnings [Member] Accounts Receivable [Member] Revenue [Member] Sales Revenue, Services, Net [Member] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Credit Concentration Risk [Member] Credit Concentration Risk [Member] Customer Concentration Risk [Member] Customer Concentration Risk [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Customer with Highest Net Accounts Receivable Position [Member] Customer With Highest Net Accounts Receivable Position [Member] Customer who accounted for the highest net accounts receivable position, which represents accounts receivable, net, less billings in excess of costs and earnings. Customer with Second Highest Net Accounts Receivable Position [Member] Customer With Second Highest Net Accounts Receivable Position [Member] Customer who accounted for the second highest net accounts receivable position, which represents accounts receivable, net, less billings in excess of costs and earnings. Ten Largest Customers [Member] Ten Largest Customers [Member] Ten largest customers Ten Largest Customers Subsequent to AT&T's Acquisition of DIRECTV [Member] Ten Largest Customers1 [Member] Ten largest customers, subsequent to AT&T acquisition of DIRECTV. Customer with Highest Net Accounts Receivable Position Subsequent to AT&T's Acquisition of DIRECTV [Member] Customer With Highest Net Accounts Receivable Position1 [Member] Customer who accounted for the highest net accounts receivable position, subsequent to AT&T's acquisition of DIRECTV, which represents accounts receivable, net, less billings in excess of costs and earnings. Concentration Risk [Line Items] Concentration Risk [Line Items] Number of customers Number Of Customers1 Number of customers Concentration risk, percentage of total Concentration Risk, Percentage Share-based Compensation [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Shares [Member] Restricted Stock [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock [Member] Common Stock [Member] Stock-Based Compensation and Other Employee Benefit Plans [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Restricted Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested restricted shares, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Canceled/forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-vested restricted shares, ending balance (in shares) Per Share Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-vested restricted shares, per share weighted average grant date fair value, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Canceled/forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Non-vested restricted shares, per share weighted average grant date fair value, ending balance (in dollars per share) Stock Options [Member] Employee Stock Option [Member] Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Options outstanding, vested, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Options exercisable, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Canceled/forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Options outstanding, vested, ending balance (in shares) Options exercisable, ending balance (in shares) Per Share Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Options outstanding, vested, per share weighted average exercise price, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Options exercisable, per share weighted average exercise price, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled/forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Options outstanding, vested, per share weighted average exercise price, ending balance (in dollars per share) Options exercisable, per share weighted average exercise price, ending balance (in dollars per share) Weighted Average Remaining Contractual Life and Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Options outstanding, vested, weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Options outstanding, vested, aggregate intrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Options exercisable, weighted average remaining contractual life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Options exercisable, aggregate intrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Leases [Abstract] Lease Obligations Leases of Lessee Disclosure [Text Block] Segment Reporting [Abstract] Segments and Related information [Table] Schedule of Segment Reporting Information, by Segment [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] United States [Member] UNITED STATES Foreign Operations [Member] Foreign Operations [Member] Foreign operations, which represent operations other than the entity's domestic/U.S. based operations. Credit Concentration Risk [Member] Geographic Concentration Risk [Member] Foreign Customers [Member] Foreign Customers [Member] Foreign customers, which represent customers in countries other than the United States. Segment and Related Information [Line Items] Segment Reporting Information [Line Items] Revenue Revenues Property and equipment, net Property, Plant and Equipment, Net Intangible assets and goodwill, net Intangible Assets, Net (Including Goodwill) Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Bottom Line Services [Member] Bottom Line Services [Member] Bottom Line Services, LLC (business name) Other December 2012 Acquisitions - Oil and Gas [Member] Other December 2012 Acquisitions - Oil And Gas [Member] Other acquisitions completed on December 1, 2012 within the Oil and Gas Segment. Other December 2012 Acquisitions - Communications [Member] Other December 2012 Acquisitions - Communications [Member] Acquisitions completed on December 1, 2012 within the Communications Segment. Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Earn-Out Arrangements [Member] Earn-out Arrangements [Member] Additional future payments to sellers of an acquired business, contingent upon the acquired business's future earnings performance. Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Fair Value [Member] Estimate of Fair Value Measurement [Member] Changes Measurement [Member] Changes Measurement [Member] Business Combinations [Line Items] Business Acquisition [Line Items] Business combinations, effective date Business Acquisition, Effective Date of Acquisition Business combinations, name of acquired entity Business Acquisition, Name of Acquired Entity Business combinations, payments in cash Payments to Acquire Businesses, Gross Business combinations, contingent consideration, earn-out period (in years) Fair Value Assumptions, Expected Term Business combination, fair value of contingent consideration, liability Business Combination, Contingent Consideration, Liability Business combination, contingent consideration, fair value measurement adjustment Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Period Increase (Decrease) Business combinations, description of acquired entity Business Acquisition, Description of Acquired Entity Discontinued Operations and Disposal Groups [Abstract] Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Deferred Compensation Arrangement with Individuals, Share-based Payments [Table] Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate, Type [Domain] Change in Accounting Estimate, Type [Domain] Contracts Accounted for under Percentage of Completion [Member] Contracts Accounted for under Percentage of Completion [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Equity Award [Domain] Employee Stock Purchase Plans [Member] Employee Stock [Member] Deferred Compensation Arrangement with Individuals, Share-based Payments [Line Items] Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items] Stock-based compensation, vesting period (in years) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Stock-based compensation awards, stock options, vested (percentage) Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage Stock-based compensation, shares withheld for taxes and the exercise price of options (in shares) Shares Paid for Tax Withholding for Share Based Compensation Stock-based compensation, payments for employee tax obligations to taxing authorities (in dollars) Payments Related to Tax Withholding for Share-based Compensation Stock-based compensation plan, description Share-based Compensation Arrangement by Share-based Payment Award, Description Stock-based compensation, purchase price of common stock, percentage of fair market value Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Stock-based compensation, fair value assumptions, method used Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used Stock-based compensation, fair value measurements, significant assumptions Fair Value Measurements, Significant Assumptions Stock-based compensation, fair value assumptions, expected dividend rate (percentage) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Earnings Per Share [Abstract] Earnings Per Share [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 2011 4.0% Notes [Member] 2011 4.0% Notes [Member] 2011 4.0% senior convertible notes 2011 4.25% Notes [Member] 2011 4.25% Notes [Member] 2011 4.25% senior convertible notes Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Convertible Debt [Member] Convertible Debt [Member] Premium Share Information: Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Number of conversion shares, principal amount (in shares) Debt Instrument, Convertible, Number of Equity Instruments Per share price, actual average (in dollars per share) Share Price During Period Price of a single share of a number of saleable stocks of a company over a period of time. Premium value (in dollars) Debt Instrument, Convertible, If-converted Value in Excess of Principal Premium shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Contingently Issuable Shares April 2014 Acquisition [Member] April 2014 Acquisitions [Member] Acquisitions completed during the month ended April 30, 2014. January 2014 Acquisition [Member] January 2014 Acquisitions [Member] Acquisitions completed during the month ended January 31, 2014. Business combinations, percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired Business combinations, payments in cash (in dollars) Multiemployer Plans [Abstract] Other Retirement Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Debt Disclosure [Abstract] Interest expense: Interest Expense, Debt [Abstract] Contractual and other interest expense Interest Expense, Debt, Excluding Amortization Accretion of senior convertible note discount Amortization of Debt Discount (Premium) Amortization of deferred financing costs Amortization of Financing Costs Total interest expense Interest Expense, Debt Interest income Investment Income, Interest Interest expense, net Interest Revenue (Expense), Net Schedule of Multi-Employer Plans [Table] Schedule of Multiemployer Plans [Table] Multi-Employer Plan Type [Axis] Multiemployer Plan Type [Axis] Multi-Employer Plans Type [Domain] Multiemployer Plans Type [Domain] Multi-Employer Plans, Pension [Member] Multiemployer Plans, Pension [Member] Multi-Employer Plans [Line Items] Multiemployer Plans [Line Items] Schedule of Multi-Employer Pension Plans Schedule of Multiemployer Plans [Table Text Block] Schedule of Covered Employees and Contributions, Multi-Employer Plans Schedule of Costs of Retirement Plans [Table Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Reportable Segments [Member] Operating Segments [Member] Corporate [Member] Corporate, Non-Segment [Member] Segments [Axis] Segments [Axis] Segments [Domain] Communications [Member] Communications [Member] Communications activities, including but not limited to: wireless, wireline/fiber, satellite communications and install-to-the-home activities. Oil and Gas [Member] Oil And Gas [Member] Engineering, construction and maintenance services on oil and natural gas pipelines and processing facilities for the energy and utilities industries. Electrical Transmission [Member] Electrical Transmission [Member] The engineering, construction and maintenance of electrical transmission lines and substations for the energy and utility industries. Power Generation and Industrial [Member] Power Generation and Industrial [Member] Power plant, renewable energy, industrial infrastructure and related facilities construction. Other [Member] Other Segments [Member] Operating Activities [Axis] Operating Activities [Axis] Operating Activities [Domain] Operating Activities [Domain] Continuing Operations [Member] Continuing Operations [Member] Assets: Segment Reporting Information, Additional Information [Abstract] Assets Assets Subsequent Events [Abstract] Subsequent Events Subsequent Events [Text Block] Fair Value Disclosures [Abstract] Fair Value Measurements, Recurring and Non-Recurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Axis] Fair Value, Measurement Frequency [Domain] Fair Value, Measurement Frequency [Domain] Fair Value Measurements, Non-Recurring [Member] Fair Value, Measurements, Nonrecurring [Member] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Level 1 [Member] Fair Value, Inputs, Level 1 [Member] Senior Notes [Member] Senior Notes [Member] 4.875% Senior Notes [Member] Four Point Eight Seven Five Percent Senior Notes [Member] 4.875% Senior Notes Carrying Amount [Member] Reported Value Measurement [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Equity Method Investment [Member] Equity Method Investee [Member] Fair Value, Financial Instruments Measured on a Non-Recurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair value measurements, valuation techniques Fair Value Measurements, Valuation Techniques Debt instrument, interest rate (percentage) Debt Instrument, Interest Rate, Stated Percentage Cost and equity method investments, including long-term receivables from investees and joint ventures, aggregate carrying value (in dollars) Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Other current liabilities, equity method investment (in dollars) Other Liabilities, Current Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Conversion Description [Axis] Debt Conversion Description [Axis] Debt Conversion, Name [Domain] Debt Conversion, Name [Domain] 4.25% Convertible Notes [Member] 4.25% Notes [Member] 4.25% senior convertible notes 2009 4.25% Notes [Member] 2009 4.25% Notes [Member] 2009 4.25% senior convertible notes 4.0% Convertible Notes [Member] 4.0% Notes [Member] 4.0% senior convertible notes 2009 4.0% Notes [Member] 2009 4.0% Notes [Member] 2009 4.0% senior convertible notes Debt Instrument [Line Items] Debt Instrument [Line Items] Debt instrument, convertible, interest rate (percentage) Debt instrument, convertible, maturity date Debt Instrument, Maturity Date Debt instrument, convertible, conversion ratio (in shares per dollar) Debt Instrument, Convertible, Conversion Ratio Debt instrument, convertible, conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price Debt instrument, convertible, common shares issued (in shares) Debt Conversion, Converted Instrument, Shares Issued Value of premium shares upon conversion, convertible notes (in dollars) Stock Issued During Period, Value, Conversion of Convertible Securities Share reissuances, treasury stock (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued Receivables [Abstract] Schedule of Accounts Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Uncollectible Receivables [Member] Uncollectible Receivables [Member] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Financing Receivable, Non-Recourse Arrangement [Member] Financing Receivable [Member] Schedule of Accounts Receivable, Net of Allowance [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Change in estimate, provision for doubtful accounts Quantifying Misstatement in Current Year Financial Statements, Amount Increase (decrease) in cash collections from non-recourse financing arrangement Other Operating Activities, Cash Flow Statement Condensed Financial Statements, Supplemental Guarantor Information [Abstract] -- None. No documentation exists for this element. -- Supplemental Guarantor Financial Information Condensed Financial Statements [Text Block] Allowance for Doubtful Accounts [Rollforward] Allowance for Doubtful Accounts Receivable [Roll Forward] Allowance for doubtful accounts at beginning of year Allowance for Doubtful Accounts Receivable, Current Provision for doubtful accounts Provision for Doubtful Accounts Amounts charged against the allowance Allowance for Doubtful Accounts Receivable, Write-offs Allowance for doubtful accounts at end of year Income Statement [Abstract] Costs of revenue, excluding depreciation and amortization Cost of Services, Excluding Depreciation, Depletion, and Amortization Depreciation and amortization Depreciation, Depletion and Amortization General and administrative expenses General and Administrative Expense Interest expense, net Loss on extinguishment of debt Gains (Losses) on Extinguishment of Debt Other (income) expense, net Nonoperating Income (Expense) Income from continuing operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Provision for income taxes Income Tax Expense (Benefit) Net income from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Discontinued operations: Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Net loss from discontinued operations, including loss on disposal and impairment charges (See Note 5) Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net (loss) income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to MasTec, Inc. Net Income (Loss) Attributable to Parent Earnings per share (See Note 3): Earnings Per Share, Basic and Diluted [Abstract] Basic earnings (loss) per share: Earnings Per Share, Basic [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Total basic earnings per share (in dollars per share) Earnings Per Share, Basic Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings (loss) per share: Earnings Per Share, Diluted [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Total diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts Receivable, Net of Allowance Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Axis] Defined Contribution Plan Name [Domain] Defined Contribution Plan Name [Domain] Deferred Compensation Plan Highly Compensated Employees [Member] Deferred Compensation Plan Highly Compensated Employees [Member] Deferred compensation plan for highly compensated employees. Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Axis] Defined Contribution Plan Type [Domain] Other Postretirement Benefit Plan [Member] Other Postretirement Benefit Plan [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Long-Term Assets [Member] Other Noncurrent Assets [Member] Other Long-Term Liabilities [Member] Other Noncurrent Liabilities [Member] Deferred compensation plan, description Deferred Compensation Arrangements, Overall, Description Deferred compensation plan, assets Deferred Compensation Plan Assets Deferred compensation plan, liabilities Deferred Compensation Liability, Classified, Noncurrent Schedule of Goodwill [Table] Schedule of Goodwill [Table] Segments [Domain] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Goodwill [Member] Goodwill [Member] Indefinite-Lived Intangible Assets [Member] Indefinite-lived Intangible Assets [Member] Impairment Test, Subsequent to Annual Review Member] Impairment Test, Subsequent To Annual Review [Member] Impairment testing performed subsequent to initial testing. Goodwill and Indefinite-Lived Intangible Assets [Line Items] Indefinite-lived Intangible Assets [Line Items] Goodwill impairment testing, number of aggregated components in reporting unit Goodwill Impairment Testing, Number Of Components Aggregated For a business entity, represents the number of components of an operating segment that were aggregated into a reporting unit for purposes of goodwill impairment testing. Goodwill impairment testing, discounted cash flow methodology, number of reporting units Goodwill Impairment Testing, Discounted Cash Flow Methodology, Number Of Reporting Units For a business entity, represents the number of reporting units for which goodwill impairment testing was performed using a discounted cash flow methodology. Indefinite-lived intangible asset impairment testing, discounted cash flow methodology, number of indefinite-lived intangible assets Impairment Testing, Discounted Cash Flow Methodology, Number Of Indefinite-Lived Intangible Assets For a business entity, represents the number of indefinite-lived intangible assets for which impairment testing was performed using a discounted cash flow methodology. Impairment testing, fair value measurements, significant assumptions Impairment testing, fair value inputs, EBITDA multiple Fair Value Inputs, Earnings before Interest, Taxes, Depreciation, and Amortization Multiple Impairment testing, number of years of cash flows before terminal value Impairment Testing, Number Of Years Of Projected Results For a business entity, represents the number of years for which projections are incorporated into a cash flow analysis before the terminal year value is estimated in connection with impairment testing. Impairment testing, discount rate (percentage) Fair Value Inputs, Discount Rate Impairment testing, fair value measurements, sensitivity analysis, description Fair Value Measurements, Sensitivity Analysis, Description Goodwill impairment testing, discount rate sensitivity analysis, percentage for which evaluation was completed Impairment Testing, Discount Rate Sensitivity Analysis, Spread On Discount Rate For Which Evaluation Was Completed For sensitivity analysis purposes, represents the percentage points added to or deducted from the discount rate used in a discounted cash flow analysis in connection with impairment testing. Indefinite-lived intangible asset impairment testing, percentage of fair value in excess of carrying amount Indefinite-Lived Intangible Asset Percentage Of Fair Value In Excess Of Carrying Amount Percentage of fair value of indefinite-lived intangible asset in excess of carrying amount. Goodwill impairment testing, reporting unit, percentage of fair value in excess of carrying amount Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Indefinite-lived intangible asset impairment testing, discounted cash flow methodology, subsequent testing, number of years of cash flows Indefinite Lived Intangible Impairment Testing Number Of Years Of Cash Flows For a business entity, represents the number of years for which projections of discounted cash flows are included in an analysis of an indefinite-lived intangible asset in connection with impairment testing performed subsequent to initial impairment testing. Indefinite-lived intangible asset impairment testing, discounted cash flow methodology, subsequent testing, terminal value (in dollars) Fair Value Inputs Terminal Value Terminal value used to find the present value of an amount to be paid or received in the future as an input to measure fair value. Pacer [Member] Pacer [Member] Pacer Construction Holdings Corporation and its affiliated operating companies (business name). Currency [Axis] Currency [Axis] All Currencies [Domain] All Currencies [Domain] Canadian Dollars [Member] Canada, Dollars Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Pre-Qualifications [Member] Contractual Rights [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Equity Method Investments [Member] Equity Method Investments [Member] Acquisition consideration: Business Combination, Consideration Transferred [Abstract] Cash Fair value of contingent consideration (earn-out liability) Business Combination, Consideration Transferred, Liabilities Incurred Total consideration transferred Business Combination, Consideration Transferred Identifiable assets acquired and liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net [Abstract] Current assets, including $3.4 million of cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Business combinations, cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Pre-qualifications Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Finite-lived intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Current liabilities, including current portion of capital lease obligations and long-term debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Net equity method investment obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities Long-term debt, including capital lease obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Deferred income taxes Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Goodwill Goodwill Total net assets acquired, including goodwill Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Debt Long-term Debt [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] 2013 Acquisitions [Member] 2013 Acquisitions [Member] Acquisitions completed during the calendar year ended December 31, 2013. Measurement Period Adjustments [Member] Scenario, Adjustment [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill, accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Amortization expense Amortization of Intangible Assets Business combinations, provisional information, initial accounting incomplete, items Business Combination, Provisional Information, Initial Accounting Incomplete, Items Business combinations, provisional information, initial accounting incomplete, reasons Business Combination, Provisional Information, Initial Accounting Incomplete, Reasons Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Treasury Stock [Member] Treasury Stock [Member] Contributed Shares [Member] Other Additional Capital [Member] Capital Surplus [Member] Additional Paid-in Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Accumulated Other Comprehensive Loss [Member] Accumulated Other Comprehensive Income (Loss) [Member] Total MasTec, Inc. Shareholders' Equity [Member] Parent [Member] Non-Controlling Interests [Member] Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Consolidated Statements of Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance, common shares outstanding (in shares) Common Stock, Shares, Issued Beginning balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Beginning balance, treasury shares (in shares) Treasury Stock, Shares Net income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Acquisition of non-controlling interest Noncontrolling Interest, Increase from Business Combination Non-cash stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Income tax effect from stock-based compensation Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Exercise of stock options (in shares) Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Issuance of restricted shares (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Issuance of restricted shares Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Other stock issuances, net (in shares) Stock Issued During Period, Shares, Other Other stock issuances, net Stock Issued During Period, Value, Other Acquisition of treasury stock, at cost (in shares) Treasury Stock, Shares, Acquired Acquisition of treasury stock, at cost Treasury Stock, Value, Acquired, Cost Method Contributed shares (in shares) Stockholders' Equity, Other Shares Contributed shares Stockholders' Equity, Other Issuance of treasury stock for convertible notes (in shares) Issuance of treasury stock for convertible notes Stock Issued During Period, Value, Treasury Stock Reissued Conversion of convertible notes Stock Issued During Period, Value, Conversion of Convertible Securities, Net of Adjustments Other activity Adjustments to Additional Paid in Capital, Other Ending balance, common shares outstanding (in shares) Ending balance Ending balance, treasury shares (in shares) 2009 Convertible Notes [Member] 2009 Senior Convertible Notes [Member] 2009 Senior Convertible Notes 2011 Convertible Notes [Member] 2011 Senior Convertible Notes [Member] 2011 Senior Convertible Notes Senior notes Notes Payable, Fair Value Disclosure Convertible notes Convertible Debt, Fair Value Disclosures Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Reportable Legal Entities [Member] Reportable Legal Entities [Member] Eliminations [Member] Consolidation, Eliminations [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] MasTec, Inc. [Member] Parent Company [Member] Guarantor Subsidiaries [Member] Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries [Member] Condensed Consolidating Statements of Cash Flows [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Net cash (used in) provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows (used in) provided by investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Cash paid for acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from disposal of business, net of cash divested Proceeds from Divestiture of Businesses, Net of Cash Divested Capital expenditures Payments to Acquire Productive Assets Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Payments for investments, net Payments for (Proceeds from) Investments Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows provided by (used in) financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from credit facilities Proceeds from Long-term Lines of Credit Repayments of credit facilities Repayments of Long-term Lines of Credit (Repayments of) proceeds from senior notes, net Proceeds from (Repayments of) Notes Payable Repayments of other borrowings and capital lease obligations Repayments of Other Debt Repurchase of common stock Payments for Repurchase of Common Stock Proceeds from stock-based awards, net of tax withholdings Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Including Stock Options Excess tax benefit from stock-based compensation Excess Tax Benefit from Share-based Compensation, Financing Activities Payments of acquisition-related contingent consideration Payments of Merger Related Costs, Financing Activities Payments of financing costs, including call premiums on extinguishment of debt Payments of Financing Costs Net financing activities and advances (to) from consolidated affiliates Net Financing Activities And Advances From (To) Consolidated Affiliates Net financing activities and advances from (to) consolidated affiliates. Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Effect of currency translation on cash Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents - beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents - end of period Rollforward of Goodwill by Segment Schedule of Goodwill [Table Text Block] Rollforward of Other Intangible Assets Intangible Assets Disclosure [Text Block] Schedule of Expected Future Amortization Expense for Amortizing Assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Eliminations [Member] Intersegment Eliminations [Member] Utilities [Member] Utilities [Member] Customers of the business entity whose end-market products or services are in the utilities industry. Revenue: Segment Reporting Information, Revenue for Reportable Segment [Abstract] Revenue (in dollars) Utilities customers, percentage of Communications segment revenue Property, Plant and Equipment [Abstract] Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Schedule of Fair Value of Financial Instruments, Non-Recurring Measurements Fair Value Measurements, Nonrecurring [Table Text Block] Equity [Abstract] Accumulated Other Comprehensive Loss Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Schedule of Changes in Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of Change in Accounting Estimate [Table] Schedule of Change in Accounting Estimate [Table] Change in Accounting Estimate [Line Items] Change in Accounting Estimate [Line Items] Current assets Assets, Current Current liabilities Liabilities, Current Long-term deferred tax liabilities, net Deferred Tax Liabilities, Net, Noncurrent Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Cross Country Pipeline [Member] Cross Country Pipeline [Member] Cross Country Pipeline Supply, Inc. (business name) Immediate Family Member of Management or Principal Owner [Member] Immediate Family Member of Management or Principal Owner [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Cost Method Investment [Member] Cost-method Investments [Member] Lease and Rental Agreements [Member] Lease Agreements [Member] Property and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Equipment [Member] Machinery and Equipment [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Cost method investment, original cost Cost Method Investments, Original Cost Expenses from transactions with related party Related Party Transaction, Expenses from Transactions with Related Party Income Tax Disclosure [Abstract] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] State [Member] State and Local Jurisdiction [Member] Foreign [Member] Foreign Tax Authority [Member] Domestic Tax Authority [Member] Domestic Tax Authority [Member] Tax Period [Axis] Tax Period [Axis] Tax Period [Domain] Tax Period [Domain] Earliest Tax Year [Member] Earliest Tax Year [Member] Latest Tax Year [Member] Latest Tax Year [Member] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] IRS [Member] Internal Revenue Service (IRS) [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Discontinued operations, benefit from income taxes Discontinued Operation, Tax Effect of Discontinued Operation Valuation allowance, methodologies and assumptions Valuation Allowance, Methodologies and Assumptions Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Net operating loss carryforwards, expiration date Operating Loss Carryforwards, Expiration Date Provision for U.S. income taxes on unremitted foreign earnings Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Liability for uncertain tax positions, current Liability for Uncertain Tax Positions, Current Liability for uncertain tax positions, long-term Liability for Uncertain Tax Positions, Noncurrent Federal income tax examination, year under examination Income Tax Examination, Year under Examination Schedule of Activity, Restricted Shares Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Schedule of Activity, Stock Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding and Exercisable [Table Text Block] Schedule of Activity, Employee Stock Purchase Plans Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of Non-Cash Stock-Based Compensation Expense Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block] Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Related Party Transactions Related Party Transactions Disclosure [Text Block] Segment reporting information, factors used to identify entity's reportable segments Segment Reporting, Factors Used to Identify Entity's Reportable Segments Number of operating segments Number of Operating Segments Number of reportable segments Number of Reportable Segments Segment reporting information, description of products and services Segment Reporting Information, Description of Products and Services Segment reporting, description of all other segments Segment Reporting, Description of All Other Segments Segment reporting, transactions between reportable segments Segment Reporting, Measurement for Transactions Between Reportable Segments Segment reporting, additional information about entity's reportable segments Segment Reporting, Additional Information about Entity's Reportable Segments Business combinations, acquisition integration costs (in dollars) Business Combination, Integration Related Costs Schedule Of Other Intangible Assets [Table] ScheduleOfIntangibleAssets [Table] Schedule of intangible assets, excluding goodwill. Non-Amortizing Intangible Assets [Axis] Non-Amortizing Intangible Assets, Major Class Name [Domain] Trade Names [Member] Trade Names [Member] Amortizing Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Amortizing Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships and Backlog [Member] Customer-Related Intangible Assets [Member] Other Amortizing Intangible Assets [Member] Other Intangible Assets [Member] Weighted Average [Member] Weighted Average [Member] Other Intangible Assets [Line Items] Intangible assets [Line Items] Line items for intangible assets, excluding goodwill. Other intangible assets, non-amortizing, carrying amount Indefinite-Lived Intangible Assets (Excluding Goodwill) Other intangible assets, amortizing, gross carrying amount Finite-Lived Intangible Assets, Gross Other intangible assets, gross carrying amount Intangible Assets, Gross (Excluding Goodwill) Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Other Intangible Assets [Roll Forward] Intangible Assets (Excluding Goodwill) [Roll Forward] Rollforward of intangible assets, excluding goodwill. Other intangible assets, non-amortizing, beginning balance Other intangible assets, net, amortizing, beginning balance Finite-Lived Intangible Assets, Net Other intangible assets, net, beginning balance Intangible Assets, Net (Excluding Goodwill) Additions from new business combinations, non-amortizing intangible assets Indefinite-lived Intangible Assets Acquired Additions from new business combinations, amortizing intangible assets Finite-lived Intangible Assets Acquired Additions from new business combinations, other intangible assets Intangible Assets Acquired, Gross (Excluding Goodwill) Amount of increase in intangible assets, excluding goodwill, resulting from a business combination. Amortization expense Currency translation adjustments, non-amortizing intangible assets Indefinite-lived Intangible Assets, Translation Adjustments Currency translation adjustments, amortizing intangible assets Finite-Lived Intangible Assets, Translation Adjustments Currency translation adjustments, other intangible assets Intangible Assets, Gross (Excluding Goodwill), Translation Adjustments Amount of increase (decrease) to intangible assets, excluding goodwill, for foreign currency translation adjustments. Other intangible assets, non-amortizing, ending balance Other intangible assets, net, amortizing, ending balance Other intangible assets, net, ending balance Remaining weighted average amortization period (in years) Finite-Lived Intangible Assets, Remaining Amortization Period Valuation and Qualifying Accounts [Abstract] Schedule II - Valuation and Qualifying Accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Commitments Contingencies and Guarantees [Text Block] Depreciation and Amortization: Depreciation, Depletion and Amortization [Abstract] Accounts Receivable, Net of Allowance Accounts Receivable, Net, Current [Abstract] Contract billings Contract Receivable, Due in Next Twelve Months Retainage Contract Receivable Retainage, Next Twelve Months Cost and earnings in excess of billings Costs in Excess of Billings, Current Accounts receivable, gross Accounts Receivable, Gross, Current Less allowance for doubtful accounts Accounts receivable, net Accounts Receivable, Net, Current Accounts Receivable [Member] Trade Accounts Receivable [Member] Schedule of Accounts Receivable, Net of Allowance Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Activity, Allowance for Doubtful Accounts Schedule of Credit Losses for Financing Receivables, Current [Table Text Block] Statement of Comprehensive Income [Abstract] Net income Other comprehensive (loss) income (See Note 14): Other Comprehensive Income (Loss), Net of Tax [Abstract] Foreign currency translation adjustments, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Changes in value of available-for-sale securities, net of tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Other comprehensive (loss) income, net of tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive (loss) income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to MasTec, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement of Financial Position [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, shares issued Preferred Stock, Shares Issued Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized Common Stock, Shares Authorized Common stock, shares issued Treasury stock, shares Capital Lease Obligations [Member] Capital Lease Obligations [Member] Notes Payable [Member] Loans Payable [Member] Debt instrument, weighted average interest rate (percentage) Debt, Weighted Average Interest Rate Schedule of Financial Information by Reportable Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of EBITDA to Consolidated Income from Continuing Operations before Income Taxes Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Reconciliation of Total Segment Assets to Total Consolidated Assets Reconciliation of Assets from Segment to Consolidated [Table Text Block] Schedule of Significant Customers, Revenue Concentration Information Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedule of Carrying Values of Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Contractual Maturities of Debt and Capital Lease Obligations Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Interest Expense, Net Interest Income and Interest Expense Disclosure [Table Text Block] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Fair Value Measurements, Recurring [Member] Fair Value, Measurements, Recurring [Member] Measurement Basis [Axis] Foreign Currency Translation Adjustments [Member] Accumulated Translation Adjustment [Member] Fair Value, Financial Instruments Measured on a Recurring Basis [Line Items] ASC 805 contingent consideration, fair value Obligations, Fair Value Disclosure Additions from new business combinations, ASC 805 contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Payments of ASC 805 contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Foreign currency translation gains, other comprehensive income, ASC 805 contingent consideration Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Accounting Changes and Error Corrections [Abstract] Schedule of Effect of Adjustments on Previously Reported Results [Table] Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] Adjustments [Member] Restatement Adjustment [Member] Adjustments for Error Corrections [Axis] Adjustments for Error Corrections [Axis] Adjustments for Error Correction [Domain] Adjustments for Error Correction [Domain] Reclassification Adjustment [Member] Reclassification Adjustment [Member] Adjustment that relates to a reclassification between financial statement line items. Error Corrections and Prior Period Adjustments Restatement [Line Items] Error Corrections and Prior Period Adjustments Restatement [Line Items] Number of projects Number Of Projects Number of projects for which construction services have been provided or will be provided. Net Income Costs of revenue, excluding depreciation and amortization Increase (decrease), other income, net Basic earnings per share, continuing operations (in dollars per share) Diluted earnings per share, continuing operations (in dollars per share) Total basic earnings per share (in dollars per share) Total diluted earnings per share (in dollars per share) EBITDA EBITDA Earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability. EBITDA margin EBITDA Margin, Percent Earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability, as a percentage of revenue. Revenue, increase (decrease), period over period, amount Increase (Decrease) In Revenue, Amount The increase (decrease) during the reporting period in the amount of revenue recognized from goods sold, services rendered or other activities that constitute an earnings process, as compared to the same period in the prior year. Revenue, increase (decrease), period over period, percent Increase (Decrease) In Revenue, Percentage The percentage increase (decrease) during the reporting period of revenue recognized from goods sold, services rendered, or other activities that constitute an earnings process, as compared to the same period in the prior year. Increase (decrease) in revenue, amount, acquisition Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Increase (decrease) in revenue, amount, organic Increase (Decrease) In Revenue, Amount, Organic The increase (decrease) during the reporting period in the amount of revenue recognized from goods sold, services rendered or other activities that constitute an earnings process, that is attributable to businesses that have been part of the entity's operations for at least twelve months. EBITDA, period over period, increase (decrease), amount Increase (Decrease) In EBITDA, Amount The increase (decrease) in the current period, as compared to the same period in the prior year, in the amount of earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability. EBITDA, period over period, increase (decrease), percent Increase (Decrease) In EBITDA, Percent The percentage increase (decrease) during the reporting period, of earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability, as compared to the same period in the prior year. Other current liabilities Current taxes receivable Income Taxes Receivable, Current Acquisition-related contingent consideration, net of current portion Business Combination, Contingent Consideration, Liability, Noncurrent Acquisition-related contingent consideration, current Business Combination, Contingent Consideration, Liability, Current EBITDA margin, period over period, increase (decrease), percent Increase (Decrease) In EBITDA Margin, In Percentage, Or Basis Points The increase (decrease) during the reporting period in EBITDA margin, in terms of percentage, or basis points, as compared to the same period in the prior year. EBITDA margin is defined as earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability, as a percentage of revenue. EBITDA margin, period over period, increase (decrease), amount Increase (Decrease) In EBITDA Margin, Amount The increase (decrease) during the reporting period in the amount of EBITDA margin, as compared to the same period in the prior year. EBITDA margin is defined as earnings from continuing operations before interest, taxes, depreciation and amortization, a non-U.S. GAAP financial measure of profitability, as a percentage of revenue. Billings in excess of costs and earnings Billings in Excess of Cost, Current Current taxes payable Taxes Payable, Current Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Condensed Consolidating Balance Sheets [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Assets Assets [Abstract] Goodwill and other intangible assets, net Investments in and advances to consolidated affiliates, net Due from Affiliate, Noncurrent Other long-term assets Other Assets, Noncurrent Total assets Liabilities and equity Liabilities and Equity [Abstract] Total current liabilities Long-term debt Long-term Debt and Capital Lease Obligations Advances from consolidated affiliates, net Due to Affiliate, Noncurrent Other long-term liabilities Liabilities, Other than Long-term Debt, Noncurrent Total liabilities Liabilities Total equity Total liabilities and equity Liabilities and Equity Schedule of Property and Equipment [Table] Property, Plant and Equipment [Table] Property and Equipment [Member] Property, Plant and Equipment [Member] Property and Equipment [Line Items] Property, Plant and Equipment [Line Items] Capitalized internal-use software, gross Capitalized Computer Software, Gross Capitalized internal-use software, net Capitalized Computer Software, Net Depreciation and amortization, continuing operations Depreciation, discontinued operations Depreciation and Amortization, Discontinued Operations Condensed Consolidating Statements of Operations and Comprehensive Income Condensed Income Statement [Table Text Block] Condensed Consolidating Balance Sheets Condensed Balance Sheet [Table Text Block] Condensed Consolidating Statements of Cash Flows Condensed Cash Flow Statement [Table Text Block] Earnings Per Share Earnings Per Share [Text Block] Amortization Expense Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract] Intangible assets, expected future amortization expense, 2015 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months Intangible assets, expected future amortization expense, 2016 Finite-Lived Intangible Assets, Amortization Expense, Year Two Intangible assets, expected future amortization expense, 2017 Finite-Lived Intangible Assets, Amortization Expense, Year Three Intangible assets, expected future amortization expense, 2018 Finite-Lived Intangible Assets, Amortization Expense, Year Four Intangible assets, expected future amortization expense, 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Five Intangible assets, expected future amortization expense, thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Intangible assets, expected future amortization expense, total Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Pipeline Joint Ventures [Member] Pipeline Joint Ventures [Member] Pipeline joint ventures Equity Method Investee [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Equity Contributions and/or Loan Guarantees [Member] Equity Contributions And/Or Loan Guarantees [Member] Equity contributions committed and/or loan guarantees provided. Subsequent Event [Line Items] Subsequent Event [Line Items] Project losses (in dollars) Loss on Contracts Equity method investment, amount of investment (in dollars) Equity Method Investment, Aggregate Cost Unconsolidated affiliates, outstanding commitments (in dollars) Other Commitment Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Number of equity method investments acquired Number Of Equity Method Investments Acquired Number of investments in which the Company has invested during the period that are accounted for under the equity method. Number of pipelines to be constructed Number Of Pipelines To Be Constructed Number of pipelines to be constructed. Credit Facility [Member] Domestic Line of Credit [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Term Loan [Member] Bridge Loan [Member] Revolving Loans [Member] Revolving Credit Facility [Member] Letters of Credit [Member] Letter of Credit [Member] Line of credit facility, accordion feature description Line of Credit Facility, Revolving Credit Conversion to Term Loan, Description Line of credit facility, description of variable rate Debt Instrument, Description of Variable Rate Basis Line of credit facility, interest rate description, letters of credit Line of Credit Facility, Interest Rate Description Line of credit facility, commitment fee description Line of Credit Facility, Commitment Fee Description Line of credit facility, collateral Line of Credit Facility, Collateral Line of credit facility, covenant terms Line of Credit Facility, Covenant Terms WesTower [Member] WesTower [Member] WesTower Communications, Inc. (business name) Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] General and Administrative Expenses [Member] General and Administrative Expense [Member] Current Liabilities [Member] Current Liabilities [Member] Primary financial statement caption encompassing total current liabilities. Business combinations, goodwill recognized, description Business Combination, Goodwill Recognized, Description Business combinations, goodwill, expected tax deductible amount Business Acquisition, Goodwill, Expected Tax Deductible Amount Business combinations, acquisition integration costs Business combinations, acquisition integration costs, current liabilities Business Combination, Separately Recognized Transactions, Liabilities Recognized Earnings Per Share [Line Items] Schedule of Earnings Per Share Information Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Convertible Note Premium Share Information Schedule of Weighted Average Number of Shares [Table Text Block] Deferred Tax Liabilities, Net [Abstract] Current deferred tax assets, net Deferred Tax Assets, Net, Current Net deferred tax liabilities Deferred Tax Liabilities, Net Long-term Debt and Capital Lease Obligations, Including Current Maturities [Abstract] Long-term Debt and Capital Lease Obligations, Including Current Maturities [Abstract] Other Credit Facilities [Member] Foreign Line of Credit [Member] Maturity Date Maturity Date [Abstract] -- None. No documentation exists for this element. -- Line of credit facility, maturity date Line of Credit Facility, Expiration Date Debt instrument, maturity date Capital lease obligations, expiration date, range, end Lease Expiration Date Notes payable, maturity date, range, end Debt Instrument, Maturity Date Range, End Carrying value of debt Long-term Debt Capital lease obligations Capital Lease Obligations Total debt Long-term Debt and Capital Lease Obligations, Including Current Maturities Less current maturities Long-term Debt and Capital Lease Obligations, Current U.S. statutory federal rate applied to pretax income Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State and local income taxes, net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Non-deductible expenses Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Change in state tax rate Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Domestic production activities deduction Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Percent Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Valuation allowance for deferred tax assets Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Pension [Member] Multi-Employer Plan Name [Axis] Multiemployer Plan Name [Axis] Multi-Employer Plan Name [Domain] Multiemployer Plan Name [Domain] Red Status [Member] Red Status [Member] Red (Critical) "zone status" as defined under the Pension Protection Act of 2006 (“the PPA”). Orange Status [Member] Orange Status [Member] Orange (Seriously Endangered) "zone status" as defined under the Pension Protection Act of 2006 (“the PPA”). Yellow Status [Member] Yellow Status [Member] Yellow Status (Endangered) "zone status" as defined under the Pension Protection Act of 2006 (“the PPA”). Green Status [Member] Green Status [Member] Green Status (Safe) "zone status" as defined under the Pension Protection Act of 2006 (“the PPA”). Plans from Which the Company Terminated Participation in 2014 [Member] Plans From Which The Company Terminated Participation In 2014 [Member] Defined benefit multi-employer pension plans from which the Company terminated its participation in 2014. Central States Southeast and Southwest Areas Pension Fund [Member] Central States Southeast And Southwest Areas Pension Fund [Member] Central States Southeast And Southwest Areas Pension Fund Cost of Revenue, Excluding Depreciation and Amortization [Member] Cost of Sales [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Withdrawal from Multi-Employer Defined Benefit Plan [Member] Withdrawal from Multiemployer Defined Benefit Plan [Member] Multi-employer plans, general nature Multiemployer Plans, General Nature Multi-employer plans, funded percentage Defined Benefit Plan, Funded Percentage Multi-employer plans, underfunded status, description Multiemployer Plans, Underfunded Status, Description Multi-employer plans, withdrawal liability (in dollars) Multiemployer Plans, Withdrawal Obligation Multi-employer plans, withdrawal charge (in dollars) Loss Contingency, Loss in Period Quarterly Financial Information Disclosure [Abstract] Schedule of Quarterly Information (Unaudited) Schedule of Quarterly Financial Information [Table Text Block] EBITDA - Continuing Operations: Segment Reporting Information, Income (Loss) before Income Taxes [Abstract] EBITDA - Continuing operations Capital Leases Capital Lease Obligations [Abstract] Future minimum lease commitments, 2015 Capital Leases, Future Minimum Payments Due, Next Twelve Months Future minimum lease commitments, 2016 Capital Leases, Future Minimum Payments Due in Two Years Future minimum lease commitments, 2017 Capital Leases, Future Minimum Payments Due in Three Years Future minimum lease commitments, 2018 Capital Leases, Future Minimum Payments Due in Four Years Future minimum lease commitments, 2019 Capital Leases, Future Minimum Payments Due in Five Years Future minimum lease commitments, thereafter Capital Leases, Future Minimum Payments Due Thereafter Total minimum lease payments Capital Leases, Future Minimum Payments Due Less amounts representing interest Capital Leases, Future Minimum Payments, Interest Included in Payments Total capital lease obligations, net of interest Less current portion Capital Lease Obligations, Current Long-term portion of capital lease obligations, net of interest Capital Lease Obligations, Noncurrent Operating Leases Leases, Operating [Abstract] Future minimum lease commitments, 2015 Operating Leases, Future Minimum Payments Due, Next Twelve Months Future minimum lease commitments, 2016 Operating Leases, Future Minimum Payments, Due in Two Years Future minimum lease commitments, 2017 Operating Leases, Future Minimum Payments, Due in Three Years Future minimum lease commitments, 2018 Operating Leases, Future Minimum Payments, Due in Four Years Future minimum lease commitments, 2019 Operating Leases, Future Minimum Payments, Due in Five Years Future minimum lease commitments, thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total minimum lease payments Operating Leases, Future Minimum Payments Due Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Asset Reconciliation: Segment Reconciliation [Abstract] Total assets Total assets of discontinued operations Disposal Group, Including Discontinued Operation, Assets 7.625% Senior Notes [Member] Seven Point Six Two Five Percent Senior Notes [Member] 7.625% senior notes Plan [Member] Scenario, Plan [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Redemption Period On or After March 15, 2018 [Member] Debt Instrument, Redemption, Period Three [Member] Redemption Period Prior to March 15, 2018 [Member] Debt Instrument, Redemption, Period Two [Member] Redemption Period Prior to March 15, 2016 [Member] Debt Instrument, Redemption, Period One [Member] Other Assets [Member] Other Assets [Member] Extinguishment of Debt [Axis] Extinguishment of Debt [Axis] Extinguishment of Debt, Type [Domain] Extinguishment of Debt, Type [Domain] Debt Repurchased [Member] Debt Repurchased [Member] Principal debt repurchased by the issuer. Debt Redeemed [Member] Debt Redeemed [Member] Principal debt redeemed by the issuer. Debt instrument, issuance date Debt Instrument, Issuance Date Debt instrument, principal amount (in dollars) Debt Instrument, Face Amount Debt instrument, payment terms Debt Instrument, Payment Terms Debt instrument, date of first required payment Debt Instrument, Date of First Required Payment Debt instrument, guarantees Debt Instrument, Collateral Debt instrument, consent fee, percentage of principal amount, note holders Consent Fee, Percentage Of Principal Amount, Note Holders The amount, expressed in terms of basis points, or percentage points, paid to debt holders to obtain a consent pertaining to a debt instrument. Debt instrument, payments for consent fee, note holders (in dollars) Payments For Consent Fee, Note Holders The amount paid to debt holders to obtain a consent pertaining to a debt instrument. Debt instrument, consent fee, percentage of principal amount, solicitation agent Consent Fee, Percentage Of Principal Amount, Solicitation Agent The amount, expressed in terms of basis points, or percentage points, paid to a solicitation agent to obtain a consent pertaining to a financial instrument. Debt instrument, payments for consent fee, solicitation agent (in dollars) Payments for Consent Fee, Solicitation Agent The amount paid to a solicitation agent to obtain a consent pertaining to a financial instrument. Debt instrument, call feature description Debt Instrument, Call Feature Debt instrument, percentage of principal that may be redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Debt instrument, earliest call date Debt Instrument, Call Date, Earliest Debt instrument, redemption description Debt Instrument, Redemption, Description Debt instrument, redemption period end date Debt Instrument, Redemption Period, End Date Debt instrument, redemption price, percentage of principal amount Debt Instrument, Redemption Price, Percentage Debt instrument, redemption, use of net cash proceeds from sales of capital stock, number of sales of stock Number Of Sales Of Capital Stock Number of sales of capital stock, from which the proceeds may be used to redeem a principal amount of the senior notes, according to the terms of the covenant. Debt instrument, restrictive covenants Debt Instrument, Restrictive Covenants Debt instrument, financing costs incurred (in dollars) Debt Issuance Cost Debt instrument, deferred financing costs, net of accumulated amortization (in dollars) Deferred Finance Costs, Net Debt instrument, repurchase date Debt Instrument, Repurchase Date Debt instrument, amount of principal repurchased or repaid (in dollars) Debt Instrument, Repurchased Face Amount Debt instrument, early tender payment, ratio of payment to principal amount Debt Instrument, Early Tender Payment Ratio Ratio applied to redemption of debt with early tender payment amount divided by debt principal amount. Debt instrument, loss on extinguishment (in dollars) Debt instrument, call premiums paid (in dollars) Payments of Debt Extinguishment Costs Debt instrument, write-off of unamortized financing costs (in dollars) Write off of Deferred Debt Issuance Cost 401(K) Plan [Member] 401(K) Plan [member] A 401(k) plan is a defined contribution plan where an employee can make contributions which go into a 401(k) account. In some plans, the employer also makes contributions such as matching the employee’s contributions up to a certain percentage. Contributions up to 3% [Member] Contributions up to 3% [Member] Contributions up to 3%. 100% Match [Member] 100 Percent Match [Member] 100% match Contributions over 3% up to 5% [Member] Contributions over 3% up to 5% [Member] Contributions over 3% up to 5%. 50% Match [Member] 50 Percent Match [Member] 50% match 401(k) Plan Disclosure [Line Items] Defined Contribution Plan Disclosure [Line Items] Stock-based compensation plan, description Description of Defined Contribution Pension and Other Postretirement Plans 401(k) plan, maximum pre-tax annual contribution per employee, percentage of annual compensation Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 401(k) plan, employer matching contribution, percentage of matching contribution Defined Contribution Plan, Employer Matching Contribution, Percent of Match 401(k) plan, employer matching contribution, percentage of employee's salary Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 401(k) plan, discretionary employer matching contribution, percentage of matching contribution in shares Employer Matching Contribution Percent of Matching Contribution in Shares Employer matching contribution, percentage of matching contribution in shares. 401(k) plan, discretionary employer matching contribution, percentage of matching contribution in cash Employer Matching Contribution, Percent of Matching Contribution in Cash Employer matching contribution, percentage of matching contribution in cash. 401(k) plan, employer matching contribution (in dollars) Defined Contribution Plan, Cost Recognized Big Country [Member] Big Country [Member] Big Country Energy Services, Inc. and its affiliated operating companies (business name). Schedule of Consideration Paid and Net Assets Acquired, Business Acquisitions Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired, Business Acquisitions Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of Measurement Period Adjustments, 2013 Acquisitions, Business Acquisitions Schedule of Change in Accounting Estimate [Table Text Block] Schedule of Pro Forma Information, Business Acquisitions Business Acquisition, Pro Forma Information [Table Text Block] Land [Member] Land [Member] Building and Leasehold Improvements [Member] Building and Building Improvements [Member] Machinery and Equipment [Member] Office Furniture and Equipment [Member] Furniture and Fixtures [Member] Construction in Progress [Member] Construction in Progress [Member] Property and equipment Property, Plant and Equipment, Gross Less accumulated depreciation and amortization Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Estimated useful lives (in years) Property, Plant and Equipment, Useful Life Schedule of Future Lease Commitments Schedule Of Future Minimum Rental Payments For Operating Leases And Lease Payments For Capital Leases [Table Text Block] Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years under capital leases and operating leases, including the effect of escalation clauses in effect as of the balance sheet date, having initial or remaining non-cancelable lease terms in excess of one year. Accounting Policies [Abstract] Principles of Consolidation Consolidation, Policy [Policy Text Block] Translation of Foreign Currencies Foreign Currency Transactions and Translations Policy [Policy Text Block] Investments in Affiliates and Other Entities Equity and Cost Method Investments, Policy [Policy Text Block] Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Unincorporated Entities, Proportionate Consolidation Interest in Unincorporated Joint Ventures or Partnerships, Policy [Policy Text Block] Management Estimates Use of Estimates, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Revenue Recognition, Percentage-of-Completion Method Revenue Recognition, Percentage-of-Completion Method [Policy Text Block] Allowance for Doubtful Accounts Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Finite-Lived Intangible Assets Intangible Assets, Finite-Lived, Policy [Policy Text Block] Impairment of Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Goodwill and Indefinite-Lived Intangible Assets Goodwill and Intangible Assets, Policy [Policy Text Block] Valuation of Net Assets Acquired and Estimated Future Earn-Out Obligations in Business Combinations Business Combinations Policy [Policy Text Block] Deferred Financing Costs Deferred Charges, Policy [Policy Text Block] Self-Insurance Self Insurance Reserve [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Unremitted Foreign Earnings Unremitted Earnings in Foreign Investment, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Litigation and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Discontinued Operations Discontinued Operations, Policy [Policy Text Block] Comprehensive Income Comprehensive Income, Policy [Policy Text Block] Income Tax Uncertainties Income Tax Uncertainties, Policy [Policy Text Block] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Groups, Including Discontinued Operations, Name [Domain] Disposal Groups, Including Discontinued Operations, Name [Domain] Globetec [Member] Globetec Business [Member] Globetec Construction, LLC (business name). DirectStar [Member] DirectStar Business [Member] DirectStar (business name). Prepaid Expenses and Other Current Assets [Member] Prepaid Expenses and Other Current Assets [Member] Other Current Liabilities [Member] Other Current Liabilities [Member] Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Discontinued operations, description Disposal Group, Including Discontinued Operation, Description and Timing of Disposal Discontinued operations, loss on disposal, before tax Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax Discontinued operations, contingent assets Discontinued operations, contingent assets, prepaid expenses and other current assets Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current Discontinued operations, contingent assets, long-term Disposal Group, Including Discontinued Operation, Assets, Noncurrent Discontinued operations, contingent liabilities, current Disposal Group, Including Discontinued Operation, Liabilities, Current Discontinued operations, revenue Disposal Group, Including Discontinued Operation, Revenue Discontinued operations, net (loss) income Discontinued operations, losses on disposal and impairment charges, net of tax Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax Discontinued operations, net sale price Disposal Group, Including Discontinued Operation, Consideration Computation of earnings per share, methodology Earnings Per Share Reconciliation Disclosure Accumulated Other Comprehensive Loss [Table] Accumulated Other Comprehensive Income (Loss) [Table] Foreign Currency [Member] Other [Member] Accumulated Net Unrealized Investment Gain (Loss) [Member] Accumulated Other Comprehensive Loss [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive loss, beginning balance Accumulated Other Comprehensive Income (Loss), Net of Tax Activity before reclassifications, net of tax Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Reclassifications, net of tax Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Accumulated other comprehensive loss, ending balance Net income attributable to MasTec: Net Income (Loss) Attributable to Parent, Diluted [Abstract] Net income, continuing operations - basic (in dollars) Income (Loss) from Continuing Operations Attributable to Parent Interest expense, net of tax, 2009 Convertible Notes (in dollars) Interest on Convertible Debt, Net of Tax Net income attributable to MasTec - diluted (in dollars) Net Income (Loss) Attributable to Parent, Diluted Net loss from discontinued operations - basic and diluted (in dollars) Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted average shares outstanding - basic Dilutive common stock equivalents (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Dilutive premium shares, 2011 Convertible Notes Dilutive shares, 2009 Convertible Notes Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities Weighted average shares outstanding - diluted Income Taxes Income Tax Disclosure [Text Block] Defined Contribution Plan Type [Domain] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] 2013 Incentive Plan [Member] 2013 Incentive Plan [Member] The MasTec, Inc. 2013 Incentive Plan ("2013 Incentive Plan") Prior Incentive Plans [Member] Prior Incentive Plans [Member] Represents all share based compensation plans for which shares remained available for issuance as of the date of adoption of the MasTec, Inc. 2013 Incentive Plan. 2013 Bargaining Units ESPP [Member] 2013 Bargaining Units ESPP [Member] The MasTec, Inc. Bargaining Units Employee Stock Purchase Plan (the “2013 Bargaining Units ESPP”) Employee Stock Plans [Member] Employee Stock Plans [Member] The MasTec, Inc. Bargaining Units Employee Stock Purchase Plan (the “2013 Bargaining Units ESPP”) and the MasTec, Inc. 2011 Employee Stock Purchase Plan (the “2011 ESPP”) together known as the “ESPPs”. 2011 ESPP [Member] 2011 ESPP [Member] The MasTec, Inc. 2011 Employee Stock Purchase Plan (the “2011 ESPP”) Stock-based compensation plan, number of shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Stock-based compensation, number of shares available for grant or issuance Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Business combinations, pro forma information, description Business Acquisition, Pro Forma Information, Description Unaudited Pro Forma Financial Information and Results of Businesses Acquired Business Acquisition, Pro Forma Information [Abstract] Business combinations, pro forma revenue Business Acquisition, Pro Forma Revenue Business combinations, pro forma net income from continuing operations Business Acquisition, Pro Forma Net Income (Loss) Business combinations, actual of acquirees, revenue (year-over-year impact) Business combinations, actual of acquirees, net (loss) income from continuing operations (year-over-year impact) Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Business combinations, other acquisition-related costs Business Combination, Acquisition Related Costs Central Pension Fund of the I.U.O.E and Participating Employers [Member] Central Pension Fund Of IUOE And Participating Employers [Member] Central Pension Fund of the International Union of Operating Engineers and Participating Employers Pipeline Industry Pension Fund [Member] Pipeline Industry Pension Fund [Member] Pipeline Industry Pension Fund Michigan Laborers' Pension Fund [Member] Michigan Laborers Pension Fund [Member] Michigan Laborers' Pension Fund Teamsters National Pipe Line Pension Fund [Member] Teamsters National Pipeline Pension Fund [Member] Teamsters National Pipe Line Pension Fund Operating Engineers' Local 324 Pension Fund [Member] Operating Engineers Local Three Hundred And Twenty Four Pension Fund [Member] Operating Engineers' Local 324 Pension Fund I.B.E.W. Local 769 Management Pension Plan A [Member] I.B.E.W. Local Seven Hundred And Sixty Nine Management Pension Plan A [Member] I.B.E.W. Local 769 Management Pension Plan A Laborers' District Council of Western Pennsylvania Pension Fund [Member] Laborers District Council Of West Pennsylvania Pension Fund [Member] Laborers' District Council Of Western Pennsylvania Pension Fund Operating Engineers' Construction Industry and Misc. Pension Fund [Member] Operating Engineers Construction Industry and Miscellaneous Pension Fund [Member] Operating Engineers' Construction Industry and Miscellaneous Pension Fund Laborers' Local Union No. 158 Pension Fund [Member] Laborers Local Union Number One Hundred And Fifty Eight Pension Fund [Member] Laborers' Local Union No. 158 Pension Fund Eighth District Electrical Pension Fund [Member] Eighth District Electrical Pension Fund [Member] Eighth District Electrical Pension Fund National Electrical Benefit Fund [Member] National Electrical Benefit Fund [Member] National Electrical Benefit Fund Laborers' National Pension Fund [Member] Laborers National Pension Fund [Member] Laborers National Pension Fund Midwest Operating Engineers Pension Trust Fund [Member] Midwest Operating Engineers Pension Trust Fund [Member] Midwest Operating Engineers Pension Trust Fund I.U.O.E. Pension Plan of Eastern Pennsylvania and Delaware [Member] InternationalUnionOfOperatingEngineersPensionFundOfEasternPennsylvaniaAndDelaware [Member] International Union of Operating Engineers Pension Plan of Eastern Pennsylvania and Delaware Other Funds [Member] Multiemployer Plan, Individually Insignificant Multiemployer Plans [Member] Subsegments [Axis] Subsegments [Axis] Subsegments [Domain] Subsegments [Domain] Canadian Multi-Employer Plans [Member] Canadian Multi-Employer Plans [Member] Multi-employer plans in which the entity participates resulting from the use of union-based resources in Canada. Multi-employer plans, employer identification number Entity Tax Identification Number Multi-employer plans, plan number Multiemployer Plan Number Multi-employer plans, contributions (in dollars) Multiemployer Plan, Period Contributions Multi-employer plans, collective bargaining arrangement, expiration date Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date Multi-employer plans, pension protection act zone status Multiemployer Plans, Certified Zone Status Multi-employer plans, pension protection act zone status, date Multiemployer Plans, Certified Zone Status, Date Multi-employer Plans, extended amortization provisions Multiemployer Plans, Certified Zone Status, Extended Amortization Provisions Multi-employer plans, Company contributions greater than 5% of total plan contributions Multiemployer Plans, Period Contributions, Significance of Contributions Multi-employer plans, funding improvement plan and rehabilitation plan status Multiemployer Plans, Funding Improvement Plan and Rehabilitation Plan Multi-employer plans, surcharge status Multiemployer Plans, Surcharge Loss Contingencies [Table] Loss Contingencies [Table] Litigation Status [Axis] Litigation Status [Axis] Litigation Status [Domain] Litigation Status [Domain] Pending Litigation [Member] Pending Litigation [Member] Resolved Litigation [Member] Settled Litigation [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] PPL [Member] PPL [Member] PPL Electric Utilities Corporation (“PPL”) Sunlight Entities [Member] Sunlight Entities [Member] Sunlight Entities (combined Sunlight business entities). Sintel [Member] Sintel [Member] Sistemas e Instalaciones de Telecomunicacion S.A. (“Sintel”) Loss Contingencies [Line Items] Loss Contingencies [Line Items] Contract price, pending litigation Construction Contracts, Gross Contract Amount Represents the gross amount of a contract award under which construction services will be provided. Construction contract, number of miles of transmission line Number Of Miles Of Transmission Line, Contract To Construct Number of miles of the transmission line to be constructed under the terms of the contract. Claims sought, pending litigation Loss Contingency, Damages Sought, Value Number of public solar projects Number of arbitration proceedings Number Of Litigation Proceedings Number of legal cases, claims or other disputes, that are subject to, or are in the process of, arbitration or other legal action. Arbitration award, pending litigation Loss Contingency, Damages Awarded, Value Legal settlement charges Previously Reported [Member] Net income Stock options exercised, intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Stock options exercised, proceeds Employee Service Share-based Compensation, Cash Received from Exercise of Stock Options Capital Expenditures: Capital expenditures Assets held under capital lease, gross Capital Leased Assets, Gross Assets held under capital lease, net Capital Leases, Balance Sheet, Assets by Major Class, Net EC Source Share Award [Member] EC Source Share Award [Member] Incentive plan for employees of EC Source Services, LLC (“EC Source”), a subsidiary company of MasTec, Inc. Stock-based compensation awards, unearned compensation (in dollars) Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options Stock-based compensation awards, unearned compensation, weighted average expected recognition period (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Stock-based compensation, vested awards, intrinsic value (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Stock-based compensation, restricted shares, granted (in shares) Stock-based compensation, restricted shares, vested in period (in shares) Restated Unaudited EBITDA and EBITDA Reconciliation: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Interest expense, net Depreciation and amortization Segments and Related Information Segment Reporting Disclosure [Text Block] EBITDA Reconciliation: Interest expense, net Depreciation and amortization Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Acquisitions Business Combination Disclosure [Text Block] Unincorporated Joint Venture [Member] Corporate Joint Venture [Member] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Performance Guarantees [Member] Performance Guarantee [Member] Other Financial Guarantees [Member] Financial Guarantee [Member] Guarantee of Indebtedness of Others [Member] Guarantee of Indebtedness of Others [Member] Additional Receivership Financing Commitment [Member] Additional Funding Agreement Terms [Member] Financial Support [Member] Capital Support Agreement [Member] Revolving Credit Facility [Member] Current Liabilities [Member] Long-Term Deferred Tax Liabilities [Member] Noncurrent Deferred Taxation Liabilities [Member] Long-term deferred tax liability attributable to taxable temporary differences. Revenue from related party Revenue from Related Parties Receivables, unincorporated joint venture Due from Joint Ventures Guarantees issued, related parties Guarantor Obligations, Maximum Exposure, Undiscounted Unconsolidated affiliates, outstanding commitments Construction projects, percentage complete Construction Projects, Percentage Complete For a construction project, represents the percentage of completion of the project as of a point in time. Number Of Equity Method Investments In Which The Company Will Cease Participation In Number Of Equity Method Investments In Which The Company Will Cease Participation Number of investment(s) in which the Company has invested that is (are) accounted for under the equity method, in which the Company intends to cease participation. Number of equity method investments Business combinations, provisional information, initial accounting incomplete, adjustment, assets Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Assets Accounts receivable, related party Accounts Receivable, Related Parties Amount paid under financing commitment Payments to Acquire Other Investments Business combinations, provisional information, initial accounting incomplete, adjustment, property and equipment Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Property, Plant, and Equipment Business combinations, provisional information, initial accounting incomplete, adjustment, liabilities Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Financial Liabilities Business combinations, provisional information, initial accounting incomplete, adjustment, goodwill Goodwill, Purchase Accounting Adjustments Business combinations, contingent consideration arrangements, basis for amount Business Combination, Contingent Consideration Arrangements, Basis for Amount Business combinations, contingent consideration, percentage of excess EBITDA Business Combinations Contingent Consideration Percentage of Excess EBITDA For an acquisition-related contingent consideration arrangement, this element represents the percentage applied to EBITDA above a minimum threshold for purposes of calculating the earn-out liability. Business combinations, contingent consideration, fair value measurements, significant assumptions Business combination, contingent consideration arrangements, range of outcomes, value, low Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Business combination, contingent consideration arrangements, range of outcomes, value, high Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Business combination, contingent consideration arrangements, range of outcomes, maximum unlimited Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Maximum Unlimited Current assets Long-term debt, including capital lease obligations Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Backlog [Member] Order or Production Backlog [Member] Non-Compete Agreements [Member] Noncompete Agreements [Member] Customer Relationships [Member] Customer Relationships [Member] Finite-lived intangible assets (in dollars) Finite-lived intangible assets, weighted average useful life (in years) Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Stock-Based Compensation and Other Employee Benefit Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Share Repurchase Program [Domain] Share Repurchase Program [Domain] 2014 Share Repurchase Program [Member] 2014 Share Repurchase Program [Member] Share repurchase plan authorized by the board of directors in December 2014. 2011 Share Repurchase Program [Member] 2011 Share Repurchase Program [Member] Share repurchase plan authorized by the board of directors in 2011. Equity, Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Share repurchase program, amount authorized, value Stock Repurchase Program, Authorized Amount Treasury stock acquired (in shares) Treasury stock acquired, value Share reissuances, treasury stock, value Schedules of Restated Net Income and Restated Condensed Unaudited Consolidated Financial Statements Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] Business Acquisitions [Member] Business Acquisitions [Member] Represents the aggregation and reporting of combined amounts of business combinations that have been completed. Other Accrued Expenses [Member] Accrued Liabilities [Member] Debt and capital lease obligations (in dollars) Debt instruments, accrued interest payable Interest Payable, Current Equity Stockholders' Equity Note Disclosure [Text Block] Executive Officers [Member] Executive Officer [Member] Major Customers [Axis] Name of Major Customer [Domain] Related Customer [Member] Related Customer [Member] Customer that has a related party relationship with the entity, either by ownership or management affiliation. Employee Leasing Arrangements [Member] Employment Contracts [Member] Satellite Communication Services [Member] Service Agreements [Member] Property Lease [Member] Property Subject to Operating Lease [Member] Charges to related party Related Party Transaction, Other Revenues from Transactions with Related Party Due from related party Due from Other Related Parties Accordion Feature [Member] Base Rate Option 1 [Member] Base Rate Option 1 [Member] Base Rate equals the Federal Funds Rate plus 0.5%. Base Rate Option 3 [Member] Base Rate Option 3 [Member] Base Rate equals the Eurocurrency Rate plus 1.00%. Base Rate Option 2 [Member] Base Rate Option 2 [Member] Base Rate equals the Bank of America Prime Rate. Commercial and/or Financial Standby [Member] Financial Standby Letter of Credit [Member] Performance Standby [Member] Standby Letters of Credit [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Eurocurrency Rate [Member] Eurocurrency Rate [Member] Interest rate at which a bank borrows funds from other banks in a foreign market. Base Rate [Member] Base Rate [Member] Federal Funds Rate [Member] Federal Funds Purchased [Member] Bank of America Prime Rate [Member] Prime Rate [Member] Permitted Acquisition [Member] Permitted Acquisition [Member] Permitted Acquisition [Member] Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Line of credit, revolving loan sublimit, Canadian dollars or Mexican pesos Line Of Credit, Revolving Loan Sublimit, Canadian Dollars Or Mexican Pesos Sublimit or portion of maximum borrowing capacity available on an existing line of credit in Canadian dollars or Mexican pesos. Line of credit facility, term loan, frequency of payments Line of Credit Facility, Frequency of Payments Line of credit facility, term loan, amount of quarterly principal installment payments Line of Credit Facility, Periodic Payment, Principal Line of credit facility, term loan, date of first required payment Line of Credit Facility, Date of First Required Payment Line of credit facility, capacity available for letters of credit Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases Line of credit facility, capacity available for letters of credit sublimit, Canadian dollars or Mexican pesos Line Of Credit, Letter Of Credit Sublimit, Canadian Dollars Or Mexican Pesos The portion of the maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for letters of credit that is available in Canadian dollars or Mexican pesos. Line of credit facility, sublimit Line of Credit, Revolving Loan Sublimit Sublimit or portion of maximum borrowing capacity available on an existing line of credit. Line of credit facility, financing costs incurred Line of credit facility, deferred financing costs, net of accumulated amortization Line of credit facility, interest rate (percentage) Line of Credit Facility, Interest Rate at Period End Line of credit facility, letters of credit issued Letters of Credit Outstanding, Amount Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Line of credit facility, unused credit facility commitment fee (percentage) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Line of credit facility, variable interest rate, margin over base rate (percentage) Debt Instrument, Basis Spread on Variable Rate Line of credit facility, combined subsidiary guarantors percentage of consolidated EBITDA threshold (percentage) Percentage Of Consolidated EBITDA Threshold, Combined Subsidiary Guarantors 1 Ratio of Loan Party EBITDA as of the most recent four quarters to Adjusted Consolidated EBITDA as of the most recent four quarters. Line of credit facility, individual domestic subsidiary guarantors percentage of consolidated EBITDA threshold (percentage) Percentage Of Consolidated EBITDA Threshold, Individual Subsidiary Guarantors 1 Ratio of Loan Party EBITDA as of the most recent four quarters to Adjusted EBITDA as of the most recent four quarters for any domestic subsidiary. Line of credit facility, required consolidated leverage ratio (in multiple) Ratio of Indebtedness to Net Capital Line of credit facility, required interest coverage ratio (in multiple) Interest Coverage Ratio The ratio which is calculated by dividing earnings before interest and taxes of a period by interest expense of the same period. Line of credit facility, adjusted consolidated leverage ratio, permitted acquisitions amount, minimum threshold Permitted Acquisitions Amount Adjusted Ratio of Indebtedness to Net Capital Minimum threshold amount of consideration for permitted acquisition or series of permitted acquisitions during a fiscal quarter in order to permit a higher consolidated leverage ratio range for such a fiscal quarter and the subsequent two fiscal quarters. Line of credit facility, adjusted consolidated leverage ratio, permitted acquisitions, maximum number of times right may be exercised Number Of Times Right May Be Exercised Number of times during the term of the Credit Facility that the right to permit the consolidated leverage ratio to exceed a specified threshold may be or has been exercised. Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves [Domain] Valuation Allowances and Reserves [Domain] Allowance for Doubtful Accounts [Member] Allowance for Doubtful Accounts [Member] Costs and Earnings in Excess of Billings Allowance [Member] Allowance for Trade Receivables [Member] Inventory Valuation Reserve [Member] Inventory Valuation Reserve [Member] Valuation Allowance for Deferred Tax Assets [Member] Valuation Allowance of Deferred Tax Assets [Member] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and Qualifying Accounts [Roll Forward] Movement in Valuation Allowances and Reserves [Roll Forward] Balance at beginning of period Valuation Allowances and Reserves, Balance Charges to cost and expense Valuation Allowances and Reserves, Charged to Cost and Expense (Deductions) Valuation Allowances and Reserves, Deductions Balance at end of period Goodwill, beginning balance Additions from new business combinations Goodwill, Acquired During Period Accruals of acquisition-related contingent consideration, net Goodwill, Other Changes Currency translation adjustments Goodwill, Translation Adjustments Goodwill, ending balance Net loss from discontinued operations Net income (loss) attributable to non-controlling interests Earnings per share: Business combinations, goodwill, expected tax deductible amount (in dollars) Business combination, contingent consideration arrangements, range of outcomes, value, low (in dollars) Business combination, contingent consideration arrangements, range of outcomes, value, high (in dollars) Business, Basis of Presentation and Significant Accounting Policies [Table] Business, Basis Of Presentation And Significant Accounting Policies [Table] Schedule reflecting financial concepts. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Uninsured Risk [Member] Uninsured Risk [Member] Insurance Policies By Type [Axis] Insurance Product Line [Axis] Insurance Policies By Type [Domain] Insurance Product Line [Domain] Workers' Compensation Policy [Member] Accident and Health Insurance Product Line [Member] General Liability Policy [Member] General Liability [Member] Property Insurance Policy [Member] Property Insurance Product Line [Member] Umbrella Policy [Member] Other Insurance Product Line [Member] Employee Group Medical Claims Policy [Member] Group Insurance Policies [Member] Automobiles [Member] Automobiles [Member] Business, Basis of Presentation and Significant Accounting Policies [Line Items] Business, Basis Of Presentation And Significant Accounting Policies [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Book overdrafts Book Overdrafts Book overdrafts represent outstanding checks or drafts not yet presented to the bank that result in overdraft balances for book purposes. Book overdrafts are classified within accounts payable in the consolidated balance sheets, that are in excess of recorded cash balances. Book overdrafts differ from bank overdrafts, which are checks presented to the bank that are in excess of cash balances at the bank. Inventory obsolescence reserves Inventory Valuation Reserves Deferred financing costs incurred, debt instruments Deferred financing costs, net of accumulated amortization, debt instruments Per claim deductible, insurance policies Malpractice Insurance, Deductible Maximum annual coverage limit, per claim Malpractice Insurance, Maximum Coverage Per Incident Maximum annual coverage limit, in aggregate Malpractice Insurance, Annual Coverage Limit Loss contingency, maximum loss per employee Loss Contingency, Range Of Possible Loss, Maximum, Per Employee The maximum amount of possible loss from the contingency per employee. Schedule of Effect of Adjustments on Previously Reported Results [Table] Other Significant Non-Cash Transaction [Axis] Other Significant Noncash Transaction [Axis] Other Significant Non-Cash Transaction, Name [Domain] Other Significant Noncash Transaction, Name [Domain] 2011 Senior Convertible Notes [Member] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Non-cash interest expense Amortization of Financing Costs and Discounts Non-cash stock-based compensation expense Allocated Share-based Compensation Expense Excess tax benefit from stock-based compensation Excess Tax Benefit from Share-based Compensation, Operating Activities Provision for deferred income taxes Deferred Income Tax Expense (Benefit) Other non-cash items Other Noncash Income (Expense) (Gains) losses on sales of assets, including impairment charges on discontinued operations Gain (Loss) on Sale of Assets and Asset Impairment Charges Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Other assets, current and long-term portion Increase (Decrease) in Other Operating Assets Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Billings in excess of costs and earnings Increase (Decrease) in Billing in Excess of Cost of Earnings Book overdrafts Increase (Decrease) in Book Overdrafts Other liabilities, current and long-term portion Increase (Decrease) in Other Operating Liabilities Net cash provided by operating activities (Payments for) proceeds from other investments Repayment of senior notes, including convertible notes Repayments of Senior Debt Repayments of other borrowings Repayments of Other Long-term Debt Payments of capital lease obligations Repayments of Long-term Capital Lease Obligations Payments of tax withholdings and proceeds from stock-based awards, net Payments of financing costs Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Interest paid Interest Paid Income taxes paid, net of refunds Income Taxes Paid, Net Supplemental disclosure of non-cash information: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Equipment acquired under capital lease Capital Lease Obligations Incurred Equipment acquired under financing arrangements Notes Issued Acquisition-related contingent consideration, new business combinations Premium shares, conversion of convertible notes Trade Name [Member] Current assets: Assets, Current [Abstract] Cash and cash equivalents Accounts receivable, net of allowance Inventories, net Inventory, Net Prepaid expenses and other current assets, including discontinued operations Prepaid Expense and Other Assets, Current Total current assets Other intangible assets, net Other long-term assets, including discontinued operations Current liabilities: Liabilities, Current [Abstract] Current maturities of long-term debt Accounts payable Accounts Payable, Current Accrued salaries and wages Employee-related Liabilities, Current Other accrued expenses Accrued Liabilities, Current Total current liabilities Acquisition-related contingent consideration, net of current portion Other long-term liabilities Other Liabilities, Noncurrent Commitments and contingencies Commitments and Contingencies Equity: Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $1.00 par value: authorized shares - 5,000,000; issued and outstanding shares - none Preferred Stock, Value, Issued Common stock, $0.10 par value: authorized shares - 145,000,000 Common Stock, Value, Issued Capital surplus Additional Paid in Capital, Common Stock Contributed shares Other Additional Capital Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Treasury stock, at cost Treasury Stock, Value Total MasTec, Inc. shareholders' equity Stockholders' Equity Attributable to Parent Non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Statement of Cash Flows [Abstract] Non-cash interest expense, including write-off of deferred financing costs on redeemed debt Proceeds from sale or redemption of investments Proceeds from Sale of Available-for-sale Securities, Debt Payments for other investments, net Proceeds from issuance of senior notes Proceeds from Issuance of Senior Long-term Debt Independent Investigation of the Audit Committee and Related Restatements Accounting Changes and Error Corrections [Text Block] Selected Quarterly Financial Information [Abstract] Selected Quarterly Financial Information [Abstract] Net income from continuing operations Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] AT&T [Member] AtT [Member] AT&T (business name) DIRECTV [Member] DirectTv [Member] DIRECTV (business name) Enbridge, Inc. [Member] Enbridge, Inc. [Member] Enbridge, Inc. (business name) AT&T and DIRECTV Combined [Member] AT&T1 [Member] AT&T, including DIRECTV (business name). Revenue, Significant Customer [Line Items] Revenue, Major Customer [Line Items] Significant customers, percentage of total consolidated revenue Acquisition consideration Accounts receivable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Other current assets, including $18.0 million of cash acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Property, equipment and other long-term assets, including deferred tax asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Billings in excess of costs and earnings Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue Other current liabilities, including current portion of capital lease obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other Long-term liabilities, including capital lease obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Multi-employer plans, collective bargaining agreements, description Multiemployer Plans, Collective-Bargaining Arrangement, Description Multi-employer plans, withdrawal liability Loss contingency, evaluation of estimated loss Loss Contingency, Management's Assessment and Process Loss contingency, damages sought, value Loss contingency, maximum loss Loss Contingency, Range of Possible Loss, Maximum Components of Deferred Tax Assets and Liabilities [Abstract] Deferred Tax Assets and Liabilities [Table] Deferred Tax Assets And Liabilities [Table] A table or schedule providing information pertaining to deferred tax assets and/or deferred tax liabilities. Ec Source [Member] Ec Source [Member] EC Source Services LLC (“EC Source”) Deferred Revenue Arrangement Type [Axis] Deferred Revenue Arrangement Type [Axis] Deferred Revenue [Domain] Deferred Revenue [Domain] Long-Term Contracts [Member] Construction Contracts [Member] Income Taxes [Line Items] Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Accrued self-insurance Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Self Insurance Operating loss carryforwards Compensation and benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Bad debt Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Other Deferred Tax Assets, Other Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Goodwill Deferred Tax Liabilities, Goodwill Other intangible assets Deferred Tax Liabilities, Intangible Assets Deferred income Deferred Tax Liabilities, Tax Deferred Income Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Provision for Income Taxes [Table] Provision For Income Taxes [Table] A summary of the components of an entity's provision for income taxes, including the current and deferred portions. Current: Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Total current income tax expense Current Income Tax Expense (Benefit) Deferred: Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Total deferred income tax expense Provision for income taxes Prepaid expenses and other current assets Commitments and contingencies (See Note 17) Equity Common stock, $0.10 par value: authorized shares - 145,000,000; issued shares - 87,614,955 and 86,725,372 as of December 31, 2014 and 2013, respectively Contributed shares (See Note 12) Treasury stock, at cost: 2,876,311 and 9,467,286 shares as of December 31, 2014 and 2013, respectively Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Axis] Lease Arrangement, Type [Domain] Lease Arrangement, Type [Domain] Lease Terms in Excess of One Year [Member] Lease Term In Excess Of One Year [Member] Lease term in excess of one year. Lease Terms of One Year or Less [Member] Lease Term Less Than One Year [Member] Lease term of one year or less. Operating Leased Assets [Line Items] Operating Leased Assets [Line Items] Operating leases, term of contract (in years) Lessee Leasing Arrangements, Operating Leases, Term of Contract Operating leases, rent expense (in dollars) Operating Leases, Rent Expense, Net Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Split Dollar Life Insurance [Member] Postretirement Life Insurance [Member] Chief Executive Officer [Member] Chief Executive Officer [Member] Chairman, Board of Directors [Member] Board of Directors Chairman [Member] Life insurance, face amount Life Insurance, Corporate or Bank Owned, Amount Proceeds from (payments for) life insurance policies Payments for (Proceeds from) Life Insurance Policies Payments for life insurance policies Payments to Acquire Life Insurance Policies Life insurance assets, carrying amount Bank Owned Life Insurance Cash proceeds (in dollars) Proceeds from Issuance of Shares under Incentive and Share-based Compensation Plans, Excluding Stock Options Common shares issued (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Weighted average price per share (in dollars per share) Weighted average per share grant date fair value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Quarterly Financial Information [Table] Interim Period, Costs Not Allocable [Table] Litigation Case Type [Domain] Quarterly Financial Information [Line Items] Interim Period, Costs Not Allocable [Line Items] Quarterly financial information, explanatory disclosure Quarterly Financial Information, Explanatory Disclosure Legal settlement charges Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Line of credit facility, maximum borrowing capacity (in dollars) Line of credit facility, amount outstanding (in dollars) Debt instrument, intent to refinance, description Short-term Debt, Refinanced, Description April 2013 Acquisition [Member] April 2013 Acquisitions [Member] Acquisitions completed during the month ended April 30, 2013. August 2013 Acquisition [Member] August 2013 Acquisitions [Member] Acquisitions completed during the month ended August 31, 2013. Schedule of Components of Income from Continuing Operations before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Provision for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Effective Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Performance and Payment Bonds [Member] Financial Guarantees [Member] Surety Bond [Member] Surety Bond [Member] Estimate [Member] Unconsolidated Affiliates [Member] Investee [Member] Workers Compensation, General and Automobile Policies [Member] Property, Liability and Casualty Insurance Product Line [Member] Workers Compensation [Member] Letters of credit issued Outstanding bonds, amount Bonded projects, costs to complete Contract Revenue Cost Self insurance reserve Self Insurance Reserve Self insurance reserve, non-current Self Insurance Reserve, Noncurrent Cash collateral held by insurance carriers Pledged Assets Separately Reported, Other Assets Pledged as Collateral, at Fair Value Workforce Subject to Collective Bargaining Arrangements [Member] Workforce Subject to Collective Bargaining Arrangements [Member] Unionized Employees [Member] Unionized Employees Concentration Risk [Member] Multi-Employer Plans, Postretirement Benefit [Member] Multiemployer Plans, Postretirement Benefit [Member] Low [Member] High [Member] Covered Employees and Contributions, Multi-Employer Plans [Line Items] Multi-employer plans, covered employees (in number of employees) Defined Contribution Plan, Number of Employees Covered Other Guarantees [Table] Long-Duration Contracts, Assumptions, by Product and Guarantee [Table] Subsidiaries [Member] Subsidiaries [Member] Warranty [Member] Warranty Obligations [Member] Other Guarantees [Line Items] Long-Duration Contracts, Assumptions by Product and Guarantee [Line Items] Other guarantees, description Guarantor Obligations, Origin and Purpose General warranty, description Standard Product Warranty Description General warranty, period (in years) General warranty, accrued reserve (in dollars) Product Warranty Accrual Other comprehensive (loss) income: Comprehensive income (loss) attributable to non-controlling interests Income Tax Effects: Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Income tax benefit from non-cash stock-based compensation Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Excess tax benefit from non-cash stock-based compensation Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Document and Entity Information [Abstract] -- None. No documentation exists for this element. -- Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Public Float (in dollars) Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Contractual Maturities of Debt and Capital Lease Obligations Maturities of Long-term Debt and Capital Lease Obligations [Abstract] Contractual maturities of debt and capital lease obligations, 2015 Long-term Debt and Capital Lease Obligations, Repayments of Principal in Next Twelve Months Contractual maturities of debt and capital lease obligations, 2016 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Two Contractual maturities of debt and capital lease obligations, 2017 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Three Contractual maturities of debt and capital lease obligations, 2018 Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal in Year Four Contractual maturities of debt and capital lease obligations, 2019 Long-term Debt, Maturities, Repayments of Principal in Year Five Contractual maturities of debt and capital lease obligations, thereafter Long-term Debt and Capital Lease Obligations, Maturities, Repayments of Principal after Year Five Business, Basis of Presentation and Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Condensed Income Statement [Table] Condensed Income Statement [Table] Condensed Consolidating Statements of Operations and Comprehensive Income [Line Items] Condensed Income Statements, Captions [Line Items] Benefit from (provision for) income taxes Equity in income from subsidiaries, net of tax Income (Loss) from Subsidiaries, Net of Tax Comprehensive income (loss) Condensed Financial Statements [Table] Condensed Financial Statements [Table] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Quarterly Information (Unaudited) Quarterly Financial Information [Text Block] Debt instrument, convertible, matured and converted (in dollars) Extinguishment of Debt, Amount Debt instrument, convertible, repayments (in dollars) Repayments of Convertible Debt Weighted average anti-dilutive common stock equivalents (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Arrangements and Non-arrangement Transactions [Domain] Arrangements and Non-arrangement Transactions [Domain] Master Service and Other Service Agreements [Member] Concentration Risk from Type of Arrangement [Member] Product Concentration Risk [Member] Billing Status, Type [Axis] Billing Status, Type [Axis] Receivables Billing Status [Domain] Receivables Billing Status [Domain] Unbilled Revenues [Member] Unbilled Revenues [Member] Costs and Earnings in Excess of Billings [Member] Change in accounting estimate, percentage of completion projects, financial effect, percentage Change In Accounting Estimate, Percentage Of Completion Projects, Financial Effect, Percentage Disclosure of the percentage effect on project profit (defined as project revenue less project costs of revenue, including depreciation) during the reporting period of changes in contract estimates for projects that were in process as of the end of the prior year. Fixed price contract, term within which generally completed (in years) Fixed Price Contracts, Term Expected length of time within which a fixed price contract is completed, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Unapproved change orders, description Unapproved Change Orders, Description Unapproved change orders, expected to be billed and collected within one year, amount (in dollars) Unbilled Change Orders, Amount Expected to be Collected within One Year Unapproved change orders, contract revenue recognized (in dollars) Contracts Revenue Change order approval process, period (in years) Unapproved Change Orders, Expected Term For Approval Expected length of time within which an unapproved change order is approved by the customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.