Geographic Concentration Risk Geographic Concentration Risk [Member] Business Acquisition [Axis] Business Acquisition [Axis] Revision of Prior Period [Axis] Revision of Prior Period [Axis] Schedule of Other Intangible Assets [Table] ScheduleOfIntangibleAssets [Table] Schedule of intangible assets, excluding goodwill. Condensed Unaudited Consolidated Statements of Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Total minimum lease payments Lessee, Operating Lease, Liability, to be Paid Translation of Foreign Currencies Foreign Currency Transactions and Translations Policy [Policy Text Block] Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Accounts receivable, credit loss provision (recovery) Accounts Receivable, Credit Loss Expense (Reversal) Related Party Transactions [Abstract] Related Party Transactions [Abstract] Long-term debt obligations Long-Term Debt, Gross Commercial and/or Financial Standby Financial Guarantees Financial Standby Letter of Credit [Member] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Finance leases, assets, net Finance Lease, Right-of-Use Asset, after Accumulated Amortization Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Gain (loss) on investments Gain (Loss) on Investments Other Other Segments [Member] Debt Instrument [Axis] Debt Instrument [Axis] Total lease obligations, net of interest Finance Lease, Liability Line of credit facility, maximum borrowing capacity Line of credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Receivable [Domain] Receivable [Domain] Expenses, related party Payments, related party Related Party Transaction, Expenses from Transactions with Related Party Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Current portion of long-term debt, including finance leases Current portion of long-term debt Long-Term Debt and Lease Obligation, Current Bonded projects, estimated costs to complete Estimated Costs To Complete Projects Secured By Bonds Reflects the amount of estimated costs to complete projects that are secured by outstanding performance and/or payment bonds as of the balance sheet date. Foreign currency translation losses, net of tax Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax AVCT AVCT [Member] American Virtual Cloud Technologies, Inc. (“AVCT”) (business name) -- formerly known as Pensare Acquisition Corp. ("Pensare"). Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Revenue recognition, performance obligations satisfied in previous periods, revenue recognized Contract with Customer, Performance Obligation Satisfied in Previous Period Payments for acquisition-related contingent assets Payment for Contingent Consideration Asset, Financing Activities Payment for Contingent Consideration Asset, Financing Activities Financial Instruments [Domain] Financial Instruments [Domain] Beneficial ownership of all interests, percentage Beneficial Ownership Interest, Percentage The total percentage of beneficial ownership of common stock, debt and/or instruments or equity participation in an investee. Excludes proportionately consolidated investees and investees accounted for under the equity method of accounting. Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Other investing activities, net Payments for (Proceeds from) Other Investing Activities 2026 Finance Lease, Liability, to be Paid, Year Four Statistical Measurement [Domain] Statistical Measurement [Domain] Non-Amortizing Intangible Assets [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Issuance (forfeiture) of restricted shares, net (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Operating leases, weighted average discount rate, percent Operating Lease, Weighted Average Discount Rate, Percent Debt instrument, interest rate (percentage) Debt Instrument, Interest Rate, Stated Percentage General Economic, Regulatory and Market Conditions Unusual or Infrequent Items, or Both [Policy Text Block] The policy disclosure for an event or transaction that is unusual in nature or infrequent in occurrence, or both. Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Proceeds from non-controlling interests Proceeds from (Payments to) Noncontrolling Interests Other Current Assets Other Current Assets [Member] Capital surplus Additional Paid in Capital, Common Stock Debt Instrument, Redemption, Period Three Debt Instrument, Redemption, Period Three [Member] Issuance of shares in connection with acquisition (in shares) Stock Issued During Period, Shares, Acquisitions Repurchase effect on weighted average shares outstanding, decrease (in shares) Effect Of Repurchases On Weighted Average Shares Outstanding, Decrease The decrease in the Company's weighted average number of shares outstanding, as compared with the respective prior year period(s), as a result of current period(s) share repurchases. Other non-cash items, net Other Noncash Income (Expense) Property and equipment, net Property and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Acquisition of treasury stock, at cost Treasury stock acquired, value Treasury Stock, Value, Acquired, Cost Method 2025 Finance Lease, Liability, to be Paid, Year Three Net income attributable to MasTec, Inc. Net Income (Loss) Attributable to Parent Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Measurement Input Type [Domain] Measurement Input Type [Domain] Contingent Consideration by Type [Axis] Contingent Consideration by Type [Axis] Anti-dilutive common stock (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Lease Obligations Lessee, Finance Leases [Text Block] 2021 Acquisitions, Acquisition Two 2021 Acquisitions, Acquisition Two [Member] 2021 Acquisitions, Acquisition Two Multiemployer plans, covered employees (in number of employees) Multiemployer Plan, Number of Employees Covered Other Other Intangible Assets [Member] 2022, remaining three months Finance Lease, Liability, to be Paid, Remainder of Fiscal Year Subsequent Event Type [Axis] Subsequent Event Type [Axis] Realized gain included in other income, net Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Operating Leases Lessee, Operating Lease, Liability, to be Paid [Abstract] Share Repurchase Program [Domain] Share Repurchase Program [Domain] All other 2021 Acquisitions, All Other [Member] 2021 Acquisitions, All Other Contract billings Accounts Receivable, before Allowance for Credit Loss, Current Equity Component [Domain] Equity Component [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Scenario [Axis] Scenario [Axis] Discount Rate Measurement Input, Discount Rate [Member] Debt instrument, redemption price (percentage) Debt Instrument, Redemption Price, Percentage Ownership [Axis] Ownership [Axis] Investment, Name [Domain] Investment, Name [Domain] Lease Obligations Lessee, Operating Leases [Text Block] Fair Value Disclosure of Liabilities Not Measured at Fair Value [Line Items] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Finance leases, assets, depreciation Finance Lease, Right-of-Use Asset, Amortization Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Related Party [Domain] Related Party [Domain] Treasury stock, at cost: 19,933,055 and 18,941,926 shares as of September 30, 2022 and December 31, 2021, respectively Treasury Stock, Common, Value Equity investments, impairments Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount Related Customer Related Customer [Member] Customer that has a related party relationship with the entity, either by ownership or management affiliation. Performance Standby Standby Letters of Credit Standby Letters of Credit [Member] Total debt, net of deferred financing costs Long-Term Debt and Lease Obligation, Including Current Maturities Unincorporated Entities, Proportional Consolidation Interest in Unincorporated Joint Ventures or Partnerships, Policy [Policy Text Block] Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Executive Officers Executive Officer [Member] Revenue: Segment Reporting Information, Revenue for Reportable Segment [Abstract] Number of operating segments Number of Operating Segments Lease Contractual Term [Domain] Lease Contractual Term [Domain] Stock-based compensation awards, unearned compensation Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Currency translation adjustments Intangible Assets, Gross (Excluding Goodwill), Translation Adjustments Amount of foreign currency translation gain (loss) which increases (decreases) intangible assets, excluding goodwill. 2022, remaining three months Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Surety Bonds Surety Bond [Member] Goodwill [Line Items] Goodwill [Line Items] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Long-term line of credit Long-Term Line of Credit Entity Address, State or Province Entity Address, State or Province Schedule of Earnings Per Share Schedule of Weighted Average Number of Shares [Table Text Block] Employee Stock Purchase Plans Employee Stock [Member] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Award Type [Axis] Award Type [Axis] Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Current portion of operating lease liabilities Less current portion Operating Lease, Liability, Current Schedule of Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Business combinations, consolidated acquisition-related revenue Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Schedule of Activity, Restricted Shares Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Acquisition-related contingent consideration liabilities, payments Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Utilities Utilities [Member] Customers of the business entity whose end-market products or services are in the utilities industry. Related Party Transaction [Domain] Related Party Transaction [Domain] March 2020 Share Repurchase Program March 2020 Share Repurchase Program [Member] Share repurchase program authorized by the board of directors in March 2020. Receivables [Abstract] Receivables [Abstract] 2021 Acquisitions, Henkels & McCoy Group, Inc. and INTREN 2021 Acquisitions, Henkels & McCoy Group, Inc. And INTREN [Member] 2021 Acquisitions - Henkel's & McCoy Group, Inc. and INTREN Accounts receivable and contract assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Capitalized internal-use software, gross Capitalized Computer Software, Gross Property and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Legal Entity [Axis] Legal Entity [Axis] Liability Class [Axis] Liability Class [Axis] Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Subsidiaries Subsidiaries [Member] Total liabilities Liabilities Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table] Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table] Operating leases, weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Geographical [Axis] Geographical [Axis] Stock-Based Compensation and Other Employee Benefit Plans [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Goodwill, measurement period adjustments Acquisition-related contingent consideration liabilities, net increase (decrease), measurement period adjustments Goodwill, Purchase Accounting Adjustments Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Revolving Loans Revolving Credit Facility [Member] Schedule of Property and Equipment, Net Property, Plant and Equipment [Table Text Block] Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Interest expense, net Non-recourse financing agreement, discount charge Interest Revenue (Expense), Net Document Type Document Type Equity investments, ownership percentage Equity Investment Without Readily Determinable Fair Value, Ownership Percentage The percentage of ownership of common stock or equity participation in an investee which does not have a readily determinable fair value. Excludes proportionately consolidated investees and investees accounted for under the equity method of accounting. Point in Time Transferred at Point in Time [Member] Compensation Related Costs [Abstract] Debt Long-Term Debt [Text Block] Restricted Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Line of credit facility, increase Line of Credit Facility, Increase (Decrease), Net Proceeds from other investments Proceeds from Sale and Maturity of Other Investments Amortizing Intangible Assets [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Employee Leasing and Advanced Receivable Arrangement Employee Leasing And Advanced Receivable Arrangement [Member] One entity, the leasing company, leases its employees to another entity, the client company. Acquisition-related contingent consideration liabilities, range of potential undiscounted earn-out liabilities, low Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low Non-vested restricted shares, beginning balance (in dollars per share) Non-vested restricted shares, ending 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 Current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Segments [Axis] Segments [Axis] Credit Facility Domestic Line of Credit [Member] Finance Leases Finance Lease, Liability, to be Paid [Abstract] Type of Agreement [Domain] Insurance Policies By Type [Domain] Product and Service [Domain] Business combination, integration related liabilities Business Combination, Integration Related Liabilities Business Combination, Integration Related Liabilities Entity Shell Company Entity Shell Company (Benefit from) provision for deferred income taxes Deferred Income Tax Expense (Benefit) Concentration Risk [Table] Concentration Risk [Table] 2021 Acquisition, Acquisition Three 2021 Acquisition, Acquisition Three [Member] 2021 Acquisition, Acquisition Three 2023 Lessee, Operating Lease, Liability, to be Paid, Year One Business acquisition, number of shares issued (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Financial Instrument [Axis] Financial Instrument [Axis] Long-term liabilities, primarily operating lease liabilities and deferred income taxes Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Consolidation Items [Domain] Consolidation Items [Domain] Subsequent Event Subsequent Event [Member] Revenue Benchmark Revenue Revenue Benchmark [Member] Document Period End Date Document Period End Date Customer Relationships And Trade Names Customer Relationships And Trade Names [Member] Customer Relationships And Trade Names Power Delivery Power Delivery Segment [Member] The engineering, construction and maintenance of electrical transmission lines and substations, primarily for the energy and utility industries. INTREN 2021 Acquisitions, All Other, INTREN [Member] 2021 Acquisitions, All Other, INTREN Covered Employees and Contributions, Multiemployer Plans [Line Items] Multiemployer Plan [Line Items] Bridge Facility and Term Loan Facility Bridge Facility and Term Loan Facility [Member] Bridge Facility and Term Loan Facility Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total assets Consolidated segment assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Earnings per share (Note 2): Earnings Per Share [Abstract] Payments for advance to affiliate Payments for Advance to Affiliate Settlement amount Litigation Settlement, Amount Awarded from Other Party Income Statement Location [Axis] Income Statement Location [Axis] Equity securities, fair value Equity Securities, FV-NI, Current Other accrued expenses Accrued Liabilities, Current Unsecured Debt Unsecured Debt [Member] Identifiable assets acquired and liabilities assumed: Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Additions from new business combinations, amortizing intangible assets Finite-Lived Intangible Assets Acquired Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Share repurchase program, amount authorized, value Stock Repurchase Program, Authorized Amount Accrued salaries and wages Employee-related Liabilities, Current Operating leases, variable lease costs Variable Lease, Cost Line of Credit Line of Credit [Member] Equity Stockholders' Equity Attributable to Parent [Abstract] Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Segments [Domain] Segments [Domain] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Non-cash interest expense, net Amortization of Debt Issuance Costs and Discounts Captive Insurance Company Captive Insurance Company [Member] Captive Insurance Company Earnings Per Share Earnings Per Share [Text Block] Customer [Axis] Customer [Axis] Business acquisition, equity interest issued or issuable, value assigned Business Acquisition, Equity Interest Issued or Issuable, Value Assigned Other Long-Term Liabilities Other Noncurrent Liabilities [Member] Long-term portion of lease obligations, net of interest Finance Lease, Liability, Noncurrent Goodwill Goodwill, Gross Purchase of non-controlling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Related Party Transaction [Line Items] Related Party Transaction [Line Items] Award Type [Domain] Award Type [Domain] Stock-based compensation awards, unearned compensation, weighted average expected recognition period (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Fees and expenses recognized in debt exchange Gain (Loss) on Extinguishment of Debt Payables, related party Accounts Payable, Related Parties Schedule of Finite-Lived Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Business acquisition, cash payment Payments to Acquire Businesses, Gross Payments for other investments Payments to Acquire Other Investments Schedule of Covered Employees and Contributions, Multiemployer Plans Multiemployer Plan [Table Text Block] Oil and Gas Oil And Gas Segment [Member] Engineering, construction and maintenance services for oil and natural gas pipelines and processing facilities for the energy and utilities industries. Entity Registrant Name Entity Registrant Name EBITDA Reconciliation: Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Abstract] Goodwill, currency translation adjustments Goodwill, Foreign Currency Translation Gain (Loss) FM Tech FM Tech [Member] FM Technology Holdings, LLC (business name), FM USA Holdings, LLC (business name) and All Communications Solutions Holdings, LLC (business name), together referred to as “FM Tech.” Equipment, Supplies and Services Equipment, Supplies And Services [Member] Purchases, rentals and lease of equipment and purchases of various types of supplies and services. Customer Relationships Customer Relationships [Member] Entity Address, City or Town Entity Address, City or Town Other Retirement Plans Retirement Benefits [Text Block] Number of management members, subcontracting arrangement Number Of Management Members Number of persons from management with an ownership interest in the related party entity Quarterly installments Debt Instrument, Quarterly Installments Debt Instrument, Quarterly Installments Leases [Abstract] Leases [Abstract] Expected Term Measurement Input, Expected Term [Member] Issuance (forfeiture) of restricted shares, net Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Total equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Eliminations Intersegment Eliminations [Member] Acquisition-related contingent consideration liabilities, estimated fair value Obligations, Fair Value Disclosure Principles of Consolidation Consolidation, Policy [Policy Text Block] Minimum Low Minimum [Member] Non-controlling interests Stockholders' Equity Attributable to Noncontrolling Interest Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Less unamortized deferred financing costs Financing costs Debt Issuance Costs, Net 6.625% Senior Notes Six Point Six Two Five Percent Senior Notes [Member] Six Point Six Two Five Percent Senior Notes Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Segments and Related Information [Table] Schedule of Segment Reporting Information, by Segment [Table] Treasury Stock Treasury Stock, Common [Member] Pension Pension Plan [Member] Contract with customer liability, deferred revenue current Contract With Customer Liability Deferred Revenue Current Amount of obligation, excluding accrued projected losses, on transfer good or service to customer for which consideration has been received or is receivable, classified as current. Investment, Name [Axis] Investment, Name [Axis] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Trading Symbol Trading Symbol Entity File Number Entity File Number Measurement period adjustments, amortizing intangible assets Finite-Lived Intangible Assets, Purchase Accounting Adjustments Acquisition costs Business Acquisition, Transaction Costs Treasury stock, shares (in shares) Beginning balance, treasury shares (in shares) Ending balance, treasury shares (in shares) Treasury Stock, Common, Shares Debt instruments, accrued interest payable Interest Payable, Current Comprehensive income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Equipment Equipment [Member] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted Stock Units Restricted Stock Units (RSUs) [Member] 4.50% Senior Notes Four Point Five Percent Senior Notes [Member] 4.50% Senior Notes Consolidated effective tax rate, percent Effective Income Tax Rate Reconciliation, Percent Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Management Estimates Use of Estimates, Policy [Policy Text Block] Charges, related party Related Party Transaction, Other Revenues from Transactions with Related Party Total net assets acquired, including goodwill Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Concentration risk, percentage of total Utilities customers, percentage of communications segment revenue Concentration Risk, Percentage Revenue Consolidated revenue Revenues Unrealized gains (losses) on investment activity, net of tax Unrealized gains (losses) on equity investee activity, net of tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Segment Reporting, Other Significant Reconciling Item [Line Items] Segment Reporting, Other Significant Reconciling Item [Line Items] Business combinations, unaudited supplemental pro forma net income (loss) Business Acquisition, Pro Forma Net Income (Loss) Retainage, percentage of contract billings Retainage, Percent Of Contract Billings Percentage of contract billings that a customer is permitted to retain until the final contract settlement because of retainage provisions in a contract. Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Income Taxes Income Tax Disclosure [Text Block] Revenue, related party Revenue from Related Parties Weighted average interest rate (percentage) Debt, Weighted Average Interest Rate Change order or claim approval process, term within which expected to be completed Unapproved Change Orders And/Or Claims, Expected Term For Approval Expected length of time within which an unapproved change order or claim is approved by the customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Credit Facility [Domain] Credit Facility [Domain] Contingent Consideration, Collections From Acquired Receivables Contingent Consideration, Collections From Acquired Receivables [Member] Contingent Consideration, Collections From Acquired Receivables Amortization expense Amortization of Intangible Assets Other intangible assets, gross Intangible Assets, Gross (Excluding Goodwill) Schedule of Goodwill by Segment Schedule of Goodwill [Table Text Block] Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activities Leases not yet commenced, undiscounted amount Lessee, Lease, Lease Not Yet Commenced, Undiscounted Amount Lessee, Lease, Lease Not Yet Commenced, Undiscounted Amount Basic earnings per share (in dollars per share) Earnings Per Share, Basic 2025 Lessee, Operating Lease, Liability, to be Paid, Year Three Long-term debt, including finance lease obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Long Term Debt Including Lease Obligations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities, Long Term Debt Including Lease Obligations Stock-based compensation, vested awards, intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Corporate Corporate, Non-Segment [Member] Unrealized gains (losses) on equity investee activity, before tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Payments to non-controlling interests, including acquisition of interests Payments to Noncontrolling Interests Concentration Risk Type [Domain] Concentration Risk Type [Domain] Debt ownership percentage Debt Instrument, Ownership Percentage Debt Instrument, Ownership Percentage Schedule of Accounts Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Non-Amortizing Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Total MasTec, Inc. shareholders’ equity Stockholders' Equity Attributable to Parent Prepaid expenses Prepaid Expense, Current Additions to property and equipment from finance leases Right-of-Use Asset Obtained in Exchange for Finance Lease Liability 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 Lease Contractual Term [Axis] Lease Contractual Term [Axis] Number of customers Number Of Customers Number of customers. Ownership [Domain] Ownership [Domain] Entity Interactive Data Current Entity Interactive Data Current Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Schedule of Property and Equipment, Net [Table] Property, Plant and Equipment [Table] Changes in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures [Abstract] Revenue recognition, changes In contract estimates, cost-to-cost method, financial effect, percentage (less than) Changes In Contract Estimates, Cost-To-Cost Measure Of Progress, 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 and are accounted for under the cost-to-cost method. Workers' Compensation Accident and Health Insurance Product Line [Member] Retained Earnings Retained Earnings [Member] Segments and Related Information [Line Items] Segment Reporting Information [Line Items] Other income related to settlements Gain (Loss) Related to Litigation Settlement Litigation Status [Domain] Litigation Status [Domain] Common Stock Common Stock [Member] Receivable Type [Axis] Receivable Type [Axis] Number of reportable segments Number of Reportable Segments Repurchases of common stock Payments for Repurchase of Common Stock Stock-based compensation plans, number of shares available for future grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Estimated fair value of contingent consideration Estimated fair value of contingent consideration Business Combination, Contingent Consideration, Liability Retainage Contract Retainage Amounts billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract. Statement [Table] Statement [Table] Finance lease and other obligations Finance Lease And Other Obligations The carrying amount as of the balance sheet date for the aggregate of finance lease and other obligations. Finance lease obligations represents the present value of lessee's discounted obligation for lease payments from finance leases. Other obligations represents the carrying amount of debt obligations classified as other. 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 Issuance of shares in connection with acquisition Stock Issued During Period, Value, Acquisitions Debt instrument, redemption price, percentage of principal amount redeemed Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed Document Quarterly Report Document Quarterly Report Letters of Credit Letter of Credit [Member] Office furniture and equipment Furniture and Fixtures [Member] Current assets: Assets, Current [Abstract] Long-term operating lease liabilities Long-term portion of lease obligations, net of interest Operating Lease, Liability, Noncurrent Statistical Measurement [Axis] Statistical Measurement [Axis] Acquisition of treasury stock, at cost (in shares) Treasury stock acquired (in shares) Treasury Stock, Shares, Acquired Payments of acquisition-related contingent consideration Payment for Contingent Consideration Liability, Financing Activities Other intangible assets, non-amortizing Other intangible assets, non-amortizing, beginning balance Other intangible assets, non-amortizing, ending balance Indefinite-Lived Intangible Assets (Excluding Goodwill) Related Party Transaction [Axis] Related Party Transaction [Axis] Measurement period adjustments, non-amortizing intangible assets Indefinite-Lived Intangible Assets, Purchase Accounting Adjustments Retained earnings Retained Earnings (Accumulated Deficit) Accounts receivable, net of allowance Accounts receivable, net of allowance Accounts Receivable, after Allowance for Credit Loss, Current Realized gain (loss) included in other income Business Combinations, Contingent Consideration, Realized Gain (Loss) Business Combinations, Contingent Consideration, Realized Gain (Loss) Equity Components [Axis] Equity Components [Axis] Scenario [Domain] Scenario [Domain] 2021 and 2022 Acquisitions 2021 and 2022 Acquisitions [Member] 2021 and 2022 Acquisitions Related Party Transactions Related Party Transactions Disclosure [Text Block] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Revision of Prior Period [Domain] Revision of Prior Period [Domain] Document Fiscal Year Focus Document Fiscal Year Focus Costs of revenue, excluding depreciation and amortization Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Statement [Line Items] Statement [Line Items] Payments of finance lease obligations Finance Lease, Principal Payments Gains on sales of assets, net Gain (Loss) on Sale of Assets and Asset Impairment Charges Unvested stock awards (in shares) Non-vested restricted shares, beginning balance (in shares) Non-vested restricted shares, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Goodwill, period increase (decrease) Goodwill, Period Increase (Decrease) Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Other expense (income), net Nonoperating Income (Expense) Variable Rate [Domain] Variable Rate [Domain] Other intangible assets, amortizing, gross Finite-Lived Intangible Assets, Gross Commitments and Contingencies [Table] Loss Contingencies [Table] Fair value gain (loss) related to resolved contingent payments Fair value adjustment related to resolved contingent payments Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Govermment Government Transactions [Member] Activities related to government transactions. Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Lease Agreements Lease Agreements [Member] Finance lease liability, current, location Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating leases, expense Operating Lease, Expense Capital expenditures Payments to Acquire Productive Assets Document Transition Report Document Transition Report Local Phone Number Local Phone Number Inventories Increase (Decrease) in Inventories Value of transaction price related to exercise of warrants Business Acquisition, Equity Interest Contingently Issued or Issuable, Value Assigned Business Acquisition, Equity Interest Contingently Issued or Issuable, Value Assigned Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Status [Axis] Litigation Status [Axis] 2021 Acquisitions 2021 Acquisitions [Member] Acquisitions completed during the year 2021. Equity investments, adjusted cost basis, amount Equity Securities without Readily Determinable Fair Value, Amount Receivables, related party Receivables, net, related party Accounts Receivable, Related Parties Equity investments, carrying value Equity method investments, net investment Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Goodwill Goodwill, net Goodwill, net, beginning balance Goodwill, net, ending balance Goodwill Goodwill Line of credit facility, capacity available for letters of credit Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases Other Current Liabilities Other Current Liabilities [Member] Currency translation adjustments, non-amortizing intangible assets Indefinite-Lived Intangible Assets, Foreign Currency Translation Gain (Loss) Property and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Additions from new business combinations, non-amortizing intangible assets Indefinite-Lived Intangible Assets Acquired 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] (Provision for) benefit from income taxes Income Tax Expense (Benefit) Geographical [Domain] Geographical [Domain] Assets held under finance leases, location Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Deferred income taxes Deferred Income Tax Liabilities, Net Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share 2026 Lessee, Operating Lease, Liability, to be Paid, Year Four Income Statement [Abstract] Income Statement [Abstract] Capital Surplus Additional Paid-in Capital [Member] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Document Fiscal Period Focus Document Fiscal Period Focus Acquisitions, Goodwill, and Other Intangible Assets, Net Acquisitions, Goodwill, and Intangible Assets, Disclosure [Text Block] Acquisitions, Goodwill, and Intangible Assets, Disclosure Diluted weighted average common shares outstanding (in shares) Weighted average shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Unrealized gains (losses) on AVCT convertible debentures, before tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax Total debt obligations Long-term Debt And Finance Lease Obligations, Including Current Maturities, Gross Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt and finance lease obligations including current maturities. Employee Group Medical Claims Group Insurance Policy [Member] Loss Contingencies [Line Items] Commitments and Contingencies [Line Items] Loss Contingencies [Line Items] Buildings and leasehold improvements Building and Building Improvements [Member] Accounts Receivable, Net, Less Deferred Revenue Accounts Receivable [Member] Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid after the fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Base Rate Base Rate [Member] Clean Energy and Infrastructure Clean Energy and Infrastructure Segment [Member] Installation and construction of power facilities, including renewables, related electrical transmission infrastructure, ethanol/biofuel facilities and various types of heavy civil and industrial infrastructure, primarily for the energy, utility and other end-markets. Line of credit facility, term loan, amount of quarterly principal installment payments Line of Credit Facility, Periodic Payment, Principal Common stock, $0.10 par value: authorized shares - 145,000,000; issued shares - 95,467,645 and 95,371,211 (including 1,660,427 and 1,747,385 of unvested stock awards) as of September 30, 2022 and December 31, 2021, respectively Common Stock, Value, Issued Current liabilities, including current portion of operating lease liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Business combination, acquisition and integration related costs Business Combination, Integration Related Costs Senior Notes Senior Notes [Member] 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 Construction Services Construction Services [Member] Construction services. Operating Segments Reportable Segments Operating Segments [Member] Operating leases, short-term leases, expense Short-Term Lease, Cost Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Concentration Risk from Type of Arrangement Product Concentration Risk [Member] HMG Henkels & McCoy Group, Inc. [Member] Henkels & McCoy Group, Inc. Consolidated EBITDA EBITDA Earnings before interest, taxes, depreciation and amortization ("EBITDA"), a non-U.S. GAAP financial measure. Cash and cash equivalents - beginning of period Cash and cash equivalents - end of period Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Term Loan Loans Payable [Member] Net income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Current liabilities: Liabilities, Current [Abstract] Net income - basic Net Income (Loss) Available to Common Stockholders, Basic Common stock, shares issued (in shares) Beginning balance, common shares outstanding (in shares) Ending balance, common shares outstanding (in shares) Common Stock, Shares, Issued Acquisition-related contingent consideration liabilities, additions from new business combinations Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Concentration Risk [Line Items] Concentration Risk [Line Items] HMG 2021 Acquisitions, Henkels & McCoy Group, Inc. [Member] 2021 Acquisitions, Henkels & McCoy Group, Inc. Contract liabilities Contract with Customer, Liability, Current Chairman, Board of Directors Board of Directors Chairman [Member] Total MasTec, Inc. Shareholders’ Equity Parent [Member] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Income Statement Location [Domain] Income Statement Location [Domain] Less current portion Finance Lease, Liability, Current Currency translation adjustments, amortizing intangible assets Finite-Lived Intangible Assets, Foreign Currency Translation Gain (Loss) Fair Value, Financial Instruments Measured on a Recurring Basis [Line Items] 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] Communications Communications Segment [Member] Engineering, construction, maintenance and customer fulfillment activities related to communications infrastructure primarily for wireless and wireline/fiber communications and install-to-the-home customers, and, to a lesser extent, infrastructure for utilities, among others. Amendment Flag Amendment Flag Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Debt instrument, face amount Debt Instrument, Face Amount Consolidated leverage ratio, maximum Debt Instrument, Covenant, Consolidated Leverage Ratio, Maximum Debt Instrument, Covenant, Consolidated Leverage Ratio, Maximum 2022 Acquisitions 2022 Acquisitions [Member] 2022 Acquisitions Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Proceeds from credit facilities Proceeds from Long-Term Lines of Credit Comprehensive income attributable to MasTec, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Noncontrolling interest, percentage of voting interests acquired Noncontrolling Interest, Percentage of Voting Interests Acquired Noncontrolling Interest, Percentage of Voting Interests Acquired 2020 Acquisitions 2020 Acquisitions [Member] Acquisitions completed during the year 2020. Cash proceeds Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Goodwill, acquired during period Goodwill, Acquired During Period Business combinations, unaudited supplemental pro forma revenue Business Acquisition, Pro Forma Revenue Schedule of Financial Information by Reportable Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Leases, remaining lease terms Lessee, Lease, Term Of Contract Term of lessee's lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Construction in progress Construction in Progress [Member] Entity Current Reporting Status Entity Current Reporting Status Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Other current liabilities Other Liabilities, Current Other long-term assets Other Assets, Noncurrent Contingent Consideration Contingent Consideration [Member] Contingent Consideration Withdrawal liability Multiemployer Plans, Withdrawal Obligation Consolidated depreciation and amortization Depreciation, Depletion and Amortization 2023 Finance Lease, Liability, to be Paid, Year One ESPP purchase price, percent Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Revenue [Table] Disaggregation of Revenue [Table] Chief Executive Officer Chief Executive Officer [Member] Line of credit facility, unused facility fee (percentage) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Thereafter Finance Lease, Liability, To Be Paid, After Year Four Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after the fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Treasury shares reissued Stock Issued During Period, Value, Treasury Stock Reissued Additions from new business combinations Intangible Assets Acquired, Gross (Excluding Goodwill) Amount of increase in intangible assets, excluding goodwill, from an acquisition. Quarterly benefit payment Multiemployer Plan, Quarterly Expected Future Benefit Payment Multiemployer Plan, Quarterly Expected Future Benefit Payment Operating leases, term of contract Lessee, Operating Lease, Term of Contract Common shares issued (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Restricted Shares Restricted Stock And Restricted Stock Units [Member] Stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met ("Restricted Stock") or share instrument which is convertible to stock or an equivalent amount of cash, after a specified period of time or when specified performance conditions are met ("Restricted Stock Units"). Restricted Stock Awards and Restricted Stock Units are together referred to as "Restricted Shares". CCI Cross Country Infrastructure [Member] Cross Country Infrastructure Services, Inc. ("CCI") (business name). Payments for life insurance policies Payment to Acquire Life Insurance Policy, Investing Activities Intangible assets and goodwill, net Intangible Assets, Net (Including Goodwill) Amortizing intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Waha JVs Waha JVs [Member] Trans-Pecos Pipeline, LLC ("TPP") (business name) and Comanche Trail Pipeline, LLC ("CTP") (business name), together referred to as the "Waha JVs". Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 2024 Finance Lease, Liability, to be Paid, Year Two Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Effect of currency translation on cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Acquisition-related contingent consideration liabilities, net increase (decrease), fair value adjustments, expense (income) Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Acquisition-related contingent consideration liabilities, range of potential undiscounted earn-out liabilities, high Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Less allowance Accounts Receivable, Allowance for Credit Loss, Current Finance lease liability, long-term, location Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Canceled/forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Self-insurance reserve Self Insurance Reserve Balance Sheet Location [Axis] Balance Sheet Location [Axis] Unrealized gains (losses) on AVCT convertible debentures, net of tax OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax Business, Basis of Presentation and Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Joint Ventures That Provide Electrical Transmission Infrastructure Services Joint Ventures That Provide Electrical Transmission Infrastructure Services [Member] Joint venture(s) that provide(s) electrical transmission infrastructure services. Common stock, shares authorized (in shares) Common Stock, Shares Authorized Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Corporate Joint Venture Proportionately Consolidated Non-Controlled Joint Venture Corporate Joint Venture [Member] Guarantor Obligations, Nature [Domain] Guarantor Obligations, Nature [Domain] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Performance and Payment Bonds Performance Guarantee [Member] Maximum High Maximum [Member] Number of joint ventures Number of Joint Ventures Number of joint ventures in which the Company has an interest. Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Contingently issuable shares (in shares) Business Acquisition, Equity Interest Contingently Issued or Issuable, Number of Shares Business Acquisition, Equity Interest Contingently Issued or Issuable, Number of Shares Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Cash and cash equivalents Cash Cash and Cash Equivalents, at Carrying Value Contract liabilities Increase (Decrease) in Contract with Customer, Liability Total current assets Assets, Current Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Income tax payments, net Income Taxes Paid, Net Settled Litigation Settled Litigation [Member] Deferred revenue, revenue recognized Contract with Customer, Liability, Revenue Recognized Business Acquisition [Line Items] Business Acquisition [Line Items] Entity Small Business Entity Small Business Other Commitments [Table] Other Commitments [Table] Number of reporting units Number of Reporting Units Equity Stockholders' Equity Note Disclosure [Text Block] Senior notes, gross carrying amount Senior Notes Line of credit, amount drawn Financing Receivable, Revolving Joint Venture Civil Construction Project Joint Venture Civil Construction Project [Member] Ownership interest in a civil construction project. Fair Value Disclosure of Liabilities Not Measured at Fair Value [Table] Fair Value Disclosure of Asset and Liability Not Measured at Fair Value [Table] Other intangible assets, net, amortizing, beginning balance Other intangible assets, net, amortizing, ending balance Finite-Lived Intangible Assets, Net Leases, renewal term Lessee, Lease, Renewal Term Term of lessee's lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Net income attributable to MasTec: Net Income (Loss) Attributable to Parent, Diluted [Abstract] Distributions to non-controlling interests Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Revenue, remaining performance obligation, expected timing of satisfaction, period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Schedule of Covered Employees and Contributions, Multiemployer Plans [Table] Multiemployer Plan [Table] Property and Equipment, Net Property, Plant and Equipment Disclosure [Text Block] Stock-based compensation, income tax benefits Share-Based Payment Arrangement, Expense, Tax Benefit Management Management [Member] Negative equity method investment EquityMethodInvestmentNegativeAmount Negative equity method investment, presented as a liability Mandatorily Redeemable Stock Mandatorily Redeemable Stock [Member] Mandatorily Redeemable Stock Measurement period adjustments Intangible Assets Excluding Goodwill, Purchase Accounting Adjustments Intangible Assets Excluding Goodwill, Purchase Accounting Adjustments Property and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Consolidated Entities [Axis] Consolidated Entities [Axis] Senior notes, estimated fair value Notes Payable, Fair Value Disclosure Equity method investments, distributions of earnings received, operating cash flows Proceeds from Equity Method Investment, Distribution Community Condotte DeMoya JV, LLC Community Condotte DeMoya JV, LLC [Member] Equity investment of Community Condotte DeMoya JV, LLC. Class of Treasury Stock [Table] Class of Treasury Stock [Table] Debt Instrument [Line Items] Debt Instrument [Line Items] Total lease obligations, net of interest Operating Lease, Liability Commitments and Contingencies Commitments Contingencies and Guarantees [Text Block] Segments and Related Information Segment Reporting Disclosure [Text Block] Total minimum lease payments Finance Lease, Liability, to be Paid Schedule of Future Minimum Lease Commitments, Finance Leases Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] Liabilities and equity Liabilities and Equity [Abstract] Unrealized gain (loss) included in other income Business Combinations, Contingent Consideration, Unrealized Gain (Loss) Business Combinations, Contingent Consideration, Unrealized Gain (Loss) Fair Value Measurements, Recurring [Table] Fair Value Measurements, Non-Recurring [Table] Fair Value, Recurring and Nonrecurring [Table] 2021 Acquisition, Acquisition One 2021 Acquisition, Acquisition One [Member] 2021 Acquisition, Acquisition One Stock-based compensation, vested awards, net income tax benefits Employee Service Share-Based Compensation, Net Tax Benefit (Deficiency) From Vesting Of Share-Based Payment Awards Amount of net tax benefit (deficiency) from vesting of share-based payment awards. Weighted average shares outstanding: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Pre-Qualifications Contractual Rights [Member] Other Expense Other Expense [Member] Inventories, net Inventory, Net Accounts payable Accounts Payable, Current Business combinations, number of acquisitions Number of Businesses Acquired Leases not yet commenced, term of contract Lessee, Lease, Lease Not yet Commenced, Term of Contract Lessee, Lease, Lease Not yet Commenced, Term of Contract Other assets, current and long-term portion Increase (Decrease) in Other Operating Assets Equity investment ownership, percentage Equity Investment, Ownership Percentage The percentage of ownership of common stock or equity participation in an investee. Excludes proportionately consolidated investees and investees accounted for under the equity method of accounting. Equity investment and warrants, amount paid Equity Securities, FV-NI, Cost Business Combination, Consideration Transferred [Abstract] Business Combination, Consideration Transferred [Abstract] Less accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Other Intangible Assets [Line Items] Intangible Assets [Line Items] Line items for intangible assets, excluding goodwill. Other Credit Facilities Foreign Line of Credit [Member] Entity Filer Category Entity Filer Category Basic weighted average common shares outstanding (in shares) Weighted average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Receivables, Non-Recourse Arrangement Financing Receivable [Member] United States UNITED STATES Confluence Confluence [Member] Confluence Networks, LLC (business name), referred to as "Confluence." Consolidated interest coverage ratio, minimum Debt Instrument, Consolidated Interest Coverage Ratio, Minimum Debt Instrument, Consolidated Interest Coverage Ratio, Minimum Business combinations, consolidated acquisition-related income (loss) Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Indemnities, accrued project close-out liabilities Loss Contingency Accrual December 2018 Share Repurchase Program December 2018 Share Repurchase Program [Member] Share repurchase program authorized by the board of directors in December 2018. Equity method investments, ownership percentage Equity Method Investment, Ownership Percentage Non-cash stock-based compensation expense Share-Based Payment Arrangement, Expense Commitments and contingencies (Note 14) Commitments and Contingencies Security Exchange Name Security Exchange Name New Term Loan Facility, Five-Year Tranche New Term Loan Facility, Five-Year Tranche [Member] New Term Loan Facility, Five-Year Tranche Amortizing intangible assets, weighted average useful life Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Preferred stock, $1.00 par value: authorized shares - 5,000,000; issued and outstanding shares – none Preferred Stock, Value, Issued Line of credit facility, letters of credit issued Letters of credit issued Letters of Credit Outstanding, Amount Restricted Stock Awards Restricted Stock [Member] Self-Insurance Uninsured Risk [Member] Property and Equipment [Line Items] Property, Plant and Equipment [Line Items] IEA Acquisition 2022 Acquisitions, Infrastructure And Energy Alternative Inc. [Member] 2022 Acquisitions, Infrastructure And Energy Alternative Inc. General and Administrative Expense General and Administrative Expense [Member] Shares transferred Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Equipment Leases Equipment Leases [Member] Amount pertaining to leasing of equipment. Cover [Abstract] Cover [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Subcontracting Arrangements Subcontracting Arrangements [Member] The performance of services under a subcontracting arrangement. Stock-Based Compensation and Other Employee Benefit Plans Share-Based Payment Arrangement [Text Block] Contingent Consideration, Value Of Common Stock Contingent Consideration, Value Of Additional Payments [Member] Contingent Consideration, Value Of Additional Payments Finance leases, weighted average discount rate, percent Finance Lease, Weighted Average Discount Rate, Percent Segment Reporting [Abstract] Segment Reporting [Abstract] Master Service and Other Service Agreements Master Service And Other Service Agreements [Member] Master service and other service agreements. Contract assets Increase (Decrease) in Contract with Customer, Asset Facility Leases Facility Leases [Member] Amount pertaining to leasing of facilities. Debt Instrument, Redemption, Period Two Debt Instrument, Redemption, Period Two [Member] Non-Controlling Interests Noncontrolling Interest [Member] Forecast Forecast [Member] Financing commitments (up to) Contractual Obligation Equity method investments, cumulative undistributed earnings Retained Earnings, Undistributed Earnings from Equity Method Investees Payments for stock-based awards Payment, Tax Withholding, Share-Based Payment Arrangement Total liabilities and equity Liabilities and Equity All Acquisitions All Acquisitions [Member] All acquisitions completed. Debt instrument, term Debt Instrument, Term Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Goodwill [Roll Forward] Goodwill [Roll Forward] Related Party [Axis] Related Party [Axis] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Repayments of credit facilities Repayments of Long-Term Lines of Credit Stock repurchase program, remaining authorized repurchase amount Stock Repurchase Program, Remaining Authorized Repurchase Amount Land Land [Member] Foreign Operations Non-US [Member] New Term Loan Facility, Acquisition Adjustment New Term Loan Facility, Acquisition Adjustment [Member] New Term Loan Facility, Acquisition Adjustment Treasury shares reissued (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued Cash paid for acquisitions, net of cash acquired Cash paid for acquisitions, net of cash acquired Cash, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Business acquisition, goodwill, expected tax deductible amount Business Acquisition, Goodwill, Expected Tax Deductible Amount Reconciliation of Consolidated Income before Income Taxes to EBITDA Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block] Debt Instrument, Redemption, Period One Debt Instrument, Redemption, Period One [Member] Current Fiscal Year End Date Current Fiscal Year End Date Debt Instrument, Redemption, Period Four Debt Instrument, Redemption, Period Four [Member] Workers' Compensation, General and Automobile Policies Property, Liability and Casualty Insurance Product Line [Member] Less amounts representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Net income - diluted Net Income (Loss) Available to Common Stockholders, Diluted Other intangible assets, net Other intangible assets, net, beginning balance Other intangible assets, net, ending balance Intangible Assets, Net (Excluding Goodwill) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Non-cash stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Consolidation Items [Axis] Consolidation Items [Axis] Proportionately consolidated non-controlled joint venture, ownership percentage Proportionately Consolidated Joint Venture Ownership Percentage The percentage interest in a proportionately consolidated joint venture. Concentration Risk Type [Axis] Concentration Risk Type [Axis] Total current liabilities Liabilities, Current 2022 Acquisitions, IEA 2022 Acquisitions, IEA [Member] 2022 Acquisitions, IEA Amortization of intangible assets Cost, Amortization 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Finance leases, assets, gross Finance Lease, Right-of-Use Asset, before Accumulated Amortization Other current assets Other Assets, Current Schedule of Accounts Receivable, Net of Allowance, and Contract Assets Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Enbridge, Inc. Enbridge, Inc. [Member] Enbridge, Inc. (business name). Customer Concentration Risk Customer Concentration Risk [Member] Other Intangible Assets [Rollforward] Intangible Assets (Excluding Goodwill) [Roll Forward] Rollforward of intangible assets, excluding goodwill. Share Repurchase Program [Axis] Share Repurchase Program [Axis] 6.625% Senior Exchanged Notes Six Point Six Two Five Percent Senior Notes Two [Member] Six Point Six Two Five Percent Senior Notes Two Revenue recognition, remaining performance obligations, contract price allocated Revenue, Remaining Performance Obligation, Amount Unrealized fair value measurement gains (losses), AVCT shares Equity Securities, FV-NI, Unrealized Gain (Loss) Bargain purchase gain Bargain purchase gain Business Combination, Bargain Purchase, Gain Recognized, Amount Equity, Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] New Term Loan Facility New Term Loan Facility [Member] New Term Loan Facility Schedule of Future Minimum Lease Commitments, Operating Leases Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Other financing activities, net Proceeds from (Payments for) Other Financing Activities Ten Largest Customers Ten Largest Customers [Member] Ten largest customers. Type of Agreement [Axis] Insurance Policies By Type [Axis] Product and Service [Axis] Finance leases, weighted average remaining lease term (in years) Finance Lease, Weighted Average Remaining Lease Term Unbilled receivables Unbilled Contracts Receivable Certain Entities, Each Accounted for Using Equity Method Investments Certain Entities, Each Accounted for Using Equity Method Investments [Member] Certain Entities, Each Accounted for Using Equity Method Investments Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Line of credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Payments to settle withrawal liability Multiemployer Plans, Payments For Withdrawal Obligation Multiemployer Plans, Payments For Withdrawal Obligation Trade Names Trade Names [Member] Equity Method Investments Equity Method Investments [Policy Text Block] Credit Facility [Axis] Credit Facility [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Long-term debt, including finance leases Long-term debt Long-Term Debt and Lease Obligation Payments, net of rebates, related party Related Party Transaction, Amounts of Transaction Schedule of Carrying Values of Debt Schedule of Long-Term Debt Instruments [Table Text Block] Equity [Abstract] Equity [Abstract] Consent payment amount Debt Instrument, Consent Payment Amount Debt Instrument, Consent Payment Amount Machinery and equipment Machinery and Equipment [Member] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Tax Identification Number Entity Tax Identification Number Self-insurance reserve, non-current Self Insurance Reserve, Noncurrent Compensation expense Compensation Expense, Excluding Cost of Good and Service Sold Acquisition adjustment, maximum Debt Instrument, Acquisition Adjustment, Maximum Debt Instrument, Acquisition Adjustment, Maximum New Term Loan Facility, Three-Year Tranche New Term Loan Facility, Three-Year Tranche [Member] New Term Loan Facility, Three-Year Tranche Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Multiemployer plan, employer contribution, cost Multiemployer Plan, Employer Contribution, Cost Earn-Out Liabilities Earn-out Arrangements [Member] Acquisition-related contingent consideration and other liabilities is composed of earn-outs, which represent the estimated fair value of future amounts payable for businesses, including for mandatorily redeemable non-controlling interests (together, “Earn-outs”), that are contingent upon the acquired business achieving certain levels of earnings in the future. Contract assets Contract assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Consolidated Entities [Domain] Consolidated Entities [Domain] Contract Assets [Abstract] Contract with Customer, Asset, after Allowance for Credit Loss, Current [Abstract] Other stock issuances (shares withheld for taxes), net (in shares) Stock Issued During Period, Shares, Other Property and equipment Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Outstanding bonds, amount Guarantor Obligations, Maximum Exposure, Undiscounted Customer Relationships and Backlog Customer-Related Intangible Assets [Member] Net decrease in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Dilutive common stock equivalents (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Business combinations, contingent consideration, earn-out period (in years) Acquisition-related contingent consideration liabilities, measurement input, discount rate Business Combination, Contingent Consideration, Liability, Measurement Input Entity Central Index Key Entity Central Index Key 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] Amortizing Intangible Assets [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Schedule of Stock-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Total consideration Total consideration Business Combination, Consideration Transferred Measurement Input Type [Axis] Measurement Input Type [Axis] Entity [Domain] Entity [Domain] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Capitalized internal-use software, net Capitalized Computer Software, Net City Area Code City Area Code Assets Assets [Abstract] General and administrative expenses General and Administrative Expense Immediate Family Member of Management Immediate Family Member of Management or Principal Owner [Member] Revision of Prior Period, Adjustment Revision of Prior Period, Adjustment [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Former Owner Of Acquired Business Former Owner Of Acquired Business [Member] Former Owner Of Acquired Business Retirement Benefits [Abstract] Retirement Benefits [Abstract] Other Commitments [Line Items] Other Commitments [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Depreciation Cost, Depreciation Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Contract with customer, unapproved change orders and/or claims, amount Contracts Receivable, Claims and Uncertain Amounts, Expected to be Collected in Next 12 Months Supplemental disclosure of non-cash information: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-cash stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Equity method investments, equity contributions Payments to Acquire Equity Method Investments Telecommunications Equity Method Investees Telecommunications Equity Method Investees [Member] Telecommunications Equity Method Investees Mandatorily Redeemable Preferred Stock Mandatorily Redeemable Preferred Stock [Member] Other stock issuances (shares withheld for taxes), net Stock Issued During Period, Value, Other Life insurance assets, carrying amount Cash Surrender Value of Life Insurance Variable Rate [Axis] Variable Rate [Axis] Less amounts representing interest Finance Lease, Liability, Undiscounted Excess Amount Other long-term liabilities Other Liabilities, Noncurrent Equity in earnings of unconsolidated affiliates, net Equity in earnings of unconsolidated affiliates, net Equity method investments, equity in earnings (losses) Income (Loss) from Equity Method Investments Other liabilities, current and long-term portion Increase (Decrease) in Other Operating Liabilities Revenue [Line Items] Disaggregation of Revenue [Line Items] Weighted Average Weighted Average [Member] Operating leases, additions Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Line of credit facility, interest rate (percentage) Line of Credit Facility, Interest Rate at Period End Cost of Revenue, Excluding Depreciation and Amortization Cost of Sales [Member] Customer [Domain] Customer [Domain] Other Multiemployer Other Postretirement Benefits Plan [Member] Foreign Denomination Foreign Denomination [Member] Contractual arrangement with a lender under which borrowings can be made up to a specific amount at any point and under which borrowings outstanding may be either short-term or long-term, depending upon the particulars, in Canadian dollars and/or Mexican pesos. Long-term assets, primarily operating lease right-of-use assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Long-term Assets, Operating Right-of-use Assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Long-term Assets, Operating Right-of-use Assets Number of subsequent fiscal quarters Debt Instrument, Acquisition Adjustment, Number Of Subsequent Fiscal Quarters Debt Instrument, Acquisition Adjustment, Number Of Subsequent Fiscal Quarters