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Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240044002 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Revenue Recognition) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240054003 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Remaining Performance Obligations) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240054003 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Remaining Performance Obligations) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240064004 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Goodwill and Indefinite-Lived Intangible Assets) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240074005 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (Stock-Based Compensation) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240084006 - Disclosure - Business, Basis of Presentation and Significant Accounting Policies (New Accounting Pronouncements) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210091002 - Disclosure - Earnings Per Share link:presentationLink link:calculationLink link:definitionLink 230103001 - Disclosure - Earnings Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 240114007 - Disclosure - Earnings Per Share (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240124008 - Disclosure - Earnings Per Share (Schedule of Earnings Per Share Information) (Details) link:presentationLink link:calculationLink link:definitionLink 210131003 - Disclosure - Goodwill and Other Intangible Assets link:presentationLink link:calculationLink link:definitionLink 230143002 - Disclosure - Goodwill and Other Intangible Assets (Tables) link:presentationLink link:calculationLink link:definitionLink 240154009 - Disclosure - Goodwill and Other Intangible Assets (Rollforward of Goodwill by Segment) (Details) link:presentationLink link:calculationLink link:definitionLink 240164010 - Disclosure - Goodwill and Other Intangible Assets (Rollforward of Other Intangible Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 240174011 - Disclosure - Goodwill and Other Intangible Assets (Schedule of Expected Future Amortization Expense) (Details) link:presentationLink link:calculationLink link:definitionLink 240184012 - Disclosure - Goodwill and Other Intangible Assets (2020 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240194013 - Disclosure - Goodwill and Other Intangible Assets (2019 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240204014 - Disclosure - Goodwill and Other Intangible Assets Goodwill (Schedule of Consideration Paid and Net Assets Acquired, Business Combinations, 2019 Acquisitions) (Details) link:presentationLink link:calculationLink link:definitionLink 240214015 - Disclosure - Goodwill and Other Intangible Assets (2018 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240224016 - Disclosure - Goodwill and Other Intangible Assets (Pro Forma Financial Information and Acquisition Results) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240234017 - Disclosure - Goodwill and Other Intangible Assets (Q1 2021 Acquisitions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210241004 - Disclosure - Fair Value of Financial Instruments link:presentationLink link:calculationLink link:definitionLink 230253003 - Disclosure - Fair Value of Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 240264018 - Disclosure - Fair Value of Financial Instruments (Acquisition-Related Contingent Consideration) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240274019 - Disclosure - Fair Value of Financial Instruments (Equity Investments) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240284020 - Disclosure - Fair Value of Financial Instruments (The Waha JVs) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240294021 - Disclosure - Fair Value of Financial Instruments (Other Investments - AVCT) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240304022 - Disclosure - Fair Value of Financial Instruments (Other Investments - Telecommunications Entities) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240314023 - Disclosure - Fair Value of Financial Instruments (Schedule of Summarized Financial Information of Equity Method Investments) (Details) link:presentationLink link:calculationLink link:definitionLink 240324024 - Disclosure - Fair Value of Financial Instruments (Senior Notes) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210331005 - Disclosure - Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities link:presentationLink link:calculationLink link:definitionLink 230343004 - Disclosure - Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 240354025 - Disclosure - Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities (Schedule of Accounts Receivable, Net of Allowance, and Contract Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 240364026 - Disclosure - Accounts Receivable, Net of Allowance, and Contract Assets and Liabilities (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210371006 - Disclosure - Property and Equipment, Net link:presentationLink link:calculationLink link:definitionLink 230383005 - Disclosure - Property and Equipment, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 240394027 - Disclosure - Property and Equipment, Net (Schedule of Property and Equipment, Net) (Details) link:presentationLink link:calculationLink link:definitionLink 240404028 - Disclosure - Property and Equipment, Net (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210411007 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 230423006 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 240434029 - Disclosure - Debt (Schedule of Carrying Values of Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 240434029 - Disclosure - Debt (Schedule of Carrying Values of Debt) (Details) link:presentationLink link:calculationLink link:definitionLink 240444030 - Disclosure - Debt (Issuance of 4.50% Senior Notes and Repurchase and Redemption of 4.875% Senior Notes) (Details) link:presentationLink link:calculationLink link:definitionLink 240454031 - Disclosure - Debt (Senior Secured Credit Facility) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240464032 - Disclosure - Debt (Other Credit Facilities) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240474033 - Disclosure - Debt (Schedule of Contractual Maturities of Debt and Finance Lease Obligations) (Details) link:presentationLink link:calculationLink link:definitionLink 240484034 - Disclosure - Debt (Other) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210491008 - Disclosure - Lease Obligations link:presentationLink link:calculationLink link:definitionLink 230503007 - Disclosure - Lease Obligations (Tables) link:presentationLink link:calculationLink link:definitionLink 240514035 - Disclosure - Lease Obligations (Finance Leases) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240524036 - Disclosure - Lease Obligations (Operating Leases) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240534037 - Disclosure - Lease Obligations (Schedule of Future Minimum Lease Commitments) (Details) link:presentationLink link:calculationLink link:definitionLink 240534037 - Disclosure - Lease Obligations (Schedule of Future Minimum Lease Commitments) (Details) link:presentationLink link:calculationLink link:definitionLink 240544038 - Disclosure - Lease Obligations Lease Obligations (Additional Lease Information) (Narrative) (Details) (Details) link:presentationLink link:calculationLink link:definitionLink 210551009 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans link:presentationLink link:calculationLink link:definitionLink 230563008 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 240574039 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240584040 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Restricted Shares) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240594041 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Activity, Restricted Shares) (Details) link:presentationLink link:calculationLink link:definitionLink 240604042 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Employee Stock Purchase Plans) (Details) link:presentationLink link:calculationLink link:definitionLink 240614043 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (401(k) Plan) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240624044 - Disclosure - Stock-Based Compensation and Other Employee Benefit Plans (Deferred Compensation Plans) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210631010 - Disclosure - Other Retirement Plans link:presentationLink link:calculationLink link:definitionLink 230643009 - Disclosure - Other Retirement Plans (Tables) link:presentationLink link:calculationLink link:definitionLink 240654045 - Disclosure - Other Retirement Plans (Schedule of Multiemployer Pension Plans) (Details) link:presentationLink link:calculationLink link:definitionLink 240664046 - Disclosure - Other Retirement Plans (Schedule of Covered Employees and Contributions, Multiemployer Plans) (Details) link:presentationLink link:calculationLink link:definitionLink 240674047 - Disclosure - Other Retirement Plans (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210681011 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 230693010 - Disclosure - Equity (Tables) link:presentationLink link:calculationLink link:definitionLink 240704048 - Disclosure - Equity (Share Activity) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240714049 - Disclosure - Equity (Rollforward of Accumulated Other Comprehensive Loss) (Details) link:presentationLink link:calculationLink link:definitionLink 210721012 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 230733011 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 240744050 - Disclosure - Income Taxes (Schedule of Components of Income before Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 240754051 - Disclosure - Income Taxes (Schedule of Provision for Income Taxes) (Details) link:presentationLink link:calculationLink link:definitionLink 240764052 - Disclosure - Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 240774053 - Disclosure - Income Taxes (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240784054 - Disclosure - Income Taxes (Schedule of Effective Tax Rate Reconciliation) (Details) link:presentationLink link:calculationLink link:definitionLink 240794055 - Disclosure - Income Taxes (Rollforward of Uncertain Tax Positions) (Details) link:presentationLink link:calculationLink link:definitionLink 210801013 - Disclosure - Segments and Related Information link:presentationLink link:calculationLink link:definitionLink 230813012 - Disclosure - Segments and Related Information (Tables) link:presentationLink link:calculationLink link:definitionLink 240824056 - Disclosure - Segments and Related Information (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240834057 - Disclosure - Segments and Related Information (Schedule of Financial Information by Reportable Segment - Revenue) (Details) link:presentationLink link:calculationLink link:definitionLink 240844058 - Disclosure - Segments and Related Information (Schedule of Financial Information by Reportable Segment - EBITDA) (Details) link:presentationLink link:calculationLink link:definitionLink 240854059 - Disclosure - Segments and Related Information (Schedule of Financial Information by Reportable Segment - Depreciation and Amortization) (Details) link:presentationLink link:calculationLink link:definitionLink 240864060 - Disclosure - Segments and Related Information (Schedule of Financial Information by Reportable Segment - Assets) (Details) link:presentationLink link:calculationLink link:definitionLink 240874061 - Disclosure - Segments and Related Information (Schedule of Financial Information by Reportable Segment - Capital Expenditures) (Details) link:presentationLink link:calculationLink link:definitionLink 240884062 - Disclosure - Segments and Related Information (Reconciliation of Consolidated Income before Income Taxes to EBITDA) (Details) link:presentationLink link:calculationLink link:definitionLink 240894063 - Disclosure - Segments and Related Information (Foreign Operations) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240904064 - Disclosure - Segments and Related Information (Schedule of Significant Customers, Revenue Concentration Information) (Details) link:presentationLink link:calculationLink link:definitionLink 210911014 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 240924065 - Disclosure - Commitments and Contingencies (Legal, Letters of Credit, Bonds, Self-Insurance) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240934066 - Disclosure - Commitments and Contingencies (Investment Arrangements) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240944067 - Disclosure - Commitments and Contingencies (Concentrations of Risk) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 210951015 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 240964068 - Disclosure - Related Party Transactions (Management and Other Transactions) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240974069 - Disclosure - Related Party Transactions (Construction Management Firm and CCI) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240984070 - Disclosure - Related Party Transactions (Executive Officers) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 240994071 - Disclosure - Related Party Transactions (Management/Subcontracting agreement) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 241004072 - Disclosure - Related Party Transactions (Contractual Joint Venture) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 241014073 - Disclosure - Related Party Transactions (Split Dollar Agreements) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 211021016 - Disclosure - Quarterly Information (Unaudited) link:presentationLink link:calculationLink link:definitionLink 231033013 - Disclosure - Quarterly Information (Unaudited) (Tables) link:presentationLink link:calculationLink link:definitionLink 241044074 - Disclosure - Quarterly Information (Unaudited) (Schedule of Quarterly Financial Information (Unaudited)) (Details) link:presentationLink link:calculationLink link:definitionLink 241054075 - Disclosure - Quarterly Information (Unaudited) (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 211061017 - Disclosure - Schedule II - Valuation and Qualifying Accounts link:presentationLink link:calculationLink link:definitionLink 241074076 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Details) link:presentationLink link:calculationLink link:definitionLink