Geographic Concentration Risk Geographic Concentration Risk [Member] Nonconsolidated, carrying amount of assets and liabilities Variable Interest Entity, Nonconsolidated, Carrying Amount Of Assets And Liabilities Variable Interest Entity, Nonconsolidated, Carrying Amount Of Assets And Liabilities Business Acquisition [Axis] Business Acquisition [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 loss Net loss Net (loss) 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 IEA 2022 Acquisitions, Infrastructure Energy Alternatives, Inc. [Member] 2022 Acquisitions, Infrastructure Energy Alternatives, Inc. Commercial and/or Financial Standby 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 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 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. Punitive damages Loss Contingency, Damages Awarded, Value Foreign currency translation gains, 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"). Revenue recognition, performance obligations satisfied in previous periods, revenue recognized Contract with Customer, Performance Obligation Satisfied in Previous Period Financial Instruments [Domain] Financial Instruments [Domain] Other investing activities, net Payments for (Proceeds from) Other Investing Activities 2027 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 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, Market and Regulatory 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] Payments to non-controlling interests, including acquisition of interests and distributions Proceeds from (Payments to) Noncontrolling Interests Other Current Assets Other Current Assets [Member] Capital surplus Additional Paid in Capital, Common Stock Corporate EBITDA Corporate EBITDA Corporate EBITDA Issuance of shares in connection with acquisition (in shares) Stock Issued During Period, Shares, Acquisitions 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 2026 Finance Lease, Liability, to be Paid, Year Three Net loss attributable to MasTec, Inc. 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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 Supplemental cash flow information: Supplemental Cash Flow Information [Abstract] Executive Officers Executive Officer [Member] 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 2023, remaining nine 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 (loss) income: Other Comprehensive Income (Loss), Net of Tax [Abstract] Litigation Settlement, Benchmark Litigation Settlement, Benchmark [Member] Litigation Settlement, Benchmark Award Type [Axis] Award Type [Axis] 2023 Acquisitions, Infrastructure Energy Alternatives, Inc. 2023 Acquisitions, Infrastructure Energy Alternatives, Inc. [Member] 2023 Acquisitions, Infrastructure Energy Alternatives, Inc. Contingent Consideration Type [Domain] Contingent Consideration Type [Domain] Net cash (used in) 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] Silicon Ranch Corporation, LLC Matter Silicon Ranch Corporation, LLC Matter [Member] Silicon Ranch Corporation, LLC Matter 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] 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 2021 Acquisitions, Henkels & McCoy Group, Inc. and INTREN 2022 Acquisitions, Henkels & McCoy Group, Inc. 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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] Proceeds from other investments Proceeds from Sale and Maturity of Other Investments 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. 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Covered Employees and Contributions, Multiemployer Plans [Line Items] Multiemployer Plan [Line Items] Total identifiable net assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total assets Consolidated assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Loss per share (Note 2): Earnings Per Share [Abstract] Payments for advance to affiliate Payments for Advance to Affiliate 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] Net cash used in 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 Purchase of non-controlling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Shares Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests, Shares 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] Loss before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Segments [Domain] Segments [Domain] (Benefit from) provision for deferred income taxes Deferred Income Taxes and Tax Credits Schedule of Goodwill [Table] Schedule of Goodwill [Table] Trade Names and Customer Relationships Trade Names and Customer Relationships [Member] Trade Names and Customer Relationships 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 loss 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 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] 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.” Equity interest issued, number of shares Business Acquisition, Equity Interest Issued, Number of Shares Business Acquisition, Equity Interest Issued, Number of Shares 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] Remediation costs Environmental Remediation Expense Quarterly installments Debt Instrument, Quarterly Installments Debt Instrument, Quarterly Installments Leases [Abstract] Leases [Abstract] Expected Term Measurement Input, Expected Term [Member] Issuance 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 Silicon Ranch Corporation, LLC Silicon Ranch Corporation, LLC [Member] Silicon Ranch Corporation, LLC 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 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 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 (loss) 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 Contractual Joint Venture Contractual Joint Venture [Member] Contractual Joint Venture 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 Concentration Risk, Percentage Revenue Consolidated revenue Revenues Unrealized (losses) gains 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 Basic earnings per share (in dollars per share) Earnings Per Share, Basic IEA Constructors, LLC IEA Constructors, LLC [Member] IEA Constructors, LLC 2026 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 Concentration Risk Type [Domain] Concentration Risk Type [Domain] 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] Common Stock Common Stock [Member] H&L Farms H&L Farms [Member] H&L Farms All other 2022 Acquisitions, All Other [Member] 2022 Acquisitions, All Other Receivable Type [Axis] Receivable Type [Axis] 2022 and 2023 Acquisitions 2022 and 2023 Acquisitions [Member] 2022 and 2023 Acquisitions 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 Payments to acquire land Payments to Acquire Land Document Quarterly Report Document Quarterly Report Letters of Credit Letter of Credit [Member] Office equipment, furniture and internal-use software 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 Other intangible assets, non-amortizing Indefinite-Lived Intangible Assets (Excluding Goodwill) Related Party Transaction [Axis] Related Party Transaction [Axis] Retained earnings Retained Earnings (Accumulated Deficit) Accounts receivable, net of allowance Accounts receivable, net of allowance Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Scenario [Domain] Scenario [Domain] Six Point Six Two Five Percent MasTec Senior Notes Six Point Six Two Five Percent MasTec Senior Notes [Member] Six Point Six Two Five Percent MasTec Senior Notes Litigation Case [Domain] Litigation Case [Domain] 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] 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 Business combination, contingent consideration, current Business Combination, Contingent Consideration, Liability, Current 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 Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Other (income) expense, net Nonoperating Income (Expense) Commitments and Contingencies [Table] Loss Contingencies [Table] Fair value gain related to warrants Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Backlog Backlog [Member] Backlog 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 Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] 2021 Acquisitions 2021 Acquisitions [Member] Acquisitions completed during the year 2021. 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Loss Contingencies [Line Items] Loss Contingencies [Line Items] Employee Group Medical Claims Group Insurance Policy [Member] 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). 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 - 98,674,997 and 98,615,105 (including 1,377,480 and 2,047,130 of unvested stock awards) as of March 31, 2023 and December 31, 2022, 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] Former Owner Former Owner [Member] Former Owner 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. Six Point Six Two Five Percent IEA Senior Notes Six Point Six Two Five Percent IEA Senior Notes [Member] Six Point Six Two Five Percent IEA Senior Notes Operating Segments Reportable Segments Operating Segments [Member] Infrastructure Energy Alternatives, Inc. And IEA Constructors, LLC Infrastructure Energy Alternatives, Inc. And IEA Constructors, LLC [Member] Infrastructure Energy Alternatives, Inc. And IEA Constructors, LLC 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] Segment 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 (loss) income attributable to non-controlling interests Net Income (Loss) Attributable to Noncontrolling Interest Power Delivery Power Delivery [Member] The engineering, construction and maintenance of electrical transmission lines and substations, primarily for the energy and utility industries. Accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Current liabilities: Liabilities, Current [Abstract] Net loss- 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 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 Debt assumed in acquisition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-Term Debt 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 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 loss 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 Litigation Case [Axis] Litigation Case [Axis] Cash proceeds Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Additions from new business combinations 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 Withdrawal liability Multiemployer Plans, Withdrawal Obligation Infrastructure Energy Alternatives, Inc. Warrants Infrastructure Energy Alternatives, Inc. Warrants [Member] Infrastructure Energy Alternatives, Inc. Warrants Consolidated depreciation and amortization Depreciation, Depletion and Amortization 2024 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). 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 2025 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 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] 2023 Acquisitions 2023 Acquisitions [Member] 2023 Acquisitions 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] Receivables, net of deferred revenue, related party Accounts Receivable, Net Of Deferred Revenues, Related Parties Accounts Receivable, Net Of Deferred Revenues, Related Parties Corporate 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] Class of Warrant or Right [Axis] Class of Warrant or Right [Axis] 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 2022 Term Loan Facility 2022 Term Loans [Member] 2022 Term Loans Revenue recognition, changes in contract estimates, result from margin decreases Changes In Contract Estimates, Cost-To-Cost Measure Of Progress, Financial Effect From Margin Increases (Decreases) Changes In Contract Estimates, Cost-To-Cost Measure Of Progress, Financial Effect From Margin Increases (Decreases) Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Cash and cash equivalents 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 Deferred revenue, revenue recognized Contract with Customer, Liability, Revenue Recognized Business Acquisition [Line Items] Business Acquisition [Line Items] Entity Small Business Entity Small Business Insurance policy limit Environmental Remediation, Insurance Policy, Limit Environmental Remediation, Insurance Policy, Limit 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] 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 loss attributable to MasTec: Net Income (Loss) Attributable to Parent, Diluted [Abstract] 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 Equity Method Investment Negative Amount Negative equity method investment, presented as a liability Mandatorily Redeemable Stock Mandatorily Redeemable Stock [Member] Mandatorily Redeemable Stock 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 Infrastructure Energy Alternatives, Inc. Infrastructure Energy Alternatives, Inc. And Silicon Ranch Corporation, LLC [Member] Infrastructure Energy Alternatives, Inc. And Silicon Ranch Corporation, LLC 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 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] Compensatory damages awarded to plaintiffs Litigation Settlement, Amount Awarded to Other Party 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] Inventories, net Inventory, Net Accounts payable Accounts Payable, Current Business combinations, number of acquisitions Number of Businesses Acquired Other assets, current and long-term portion Increase (Decrease) in Other Operating Assets Acquisition consideration: 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] Fair value of warrants outstanding Warrants And Common Stock, Fair Value Disclosure Warrants And Common Stock, Fair Value Disclosure 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." 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 Class of Warrant or Right [Domain] Class of Warrant or Right [Domain] 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] 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 Cash acquired from acquisition Cash Acquired from Acquisition 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. 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 Finite And Indefinite Lived Intangible Assets By Major Class [Domain] Finite And Indefinite Lived Intangible Assets By Major Class [Domain] Finite And Indefinite Lived Intangible Assets By Major Class [Domain] 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] 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] Current Fiscal Year End Date Current Fiscal Year End Date 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 loss - 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 sales 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 Equity method Investment, related party, ownership percentage Equity Method Investment, Related Party, Ownership Percentage Equity Method Investment, Related Party, Ownership Percentage 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 2025 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 Finite And Indefinite Lived Intangible Assets By Major Class [Axis] Finite And Indefinite Lived Intangible Assets By Major Class [Axis] Finite And Indefinite Lived Intangible Assets By Major Class Schedule of Accounts Receivable, Net of Allowance, and Contract Assets Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Customer Concentration Risk Customer Concentration Risk [Member] Other Intangible Assets [Rollforward] Intangible Assets (Excluding Goodwill) [Roll Forward] Rollforward of intangible assets, excluding goodwill. Other Subcontracting Arrangements Subcontracting Arrangement Two [Member] Subcontracting Arrangement Two Share Repurchase Program [Axis] Share Repurchase Program [Axis] Revenue recognition, remaining performance obligations, contract price allocated Revenue, Remaining Performance Obligation, 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] 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 Trade Names Trade Names Trade Names [Member] 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] Machinery, equipment and vehicles 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 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] Shares withheld for taxes, net of other stock issuances (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 Guarantor obligations, maximum exposure, undiscounted Guarantor Obligations, Maximum Exposure, Undiscounted Debt instrument, interest rate during period Debt Instrument, Interest Rate During Period 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] 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 Business Combination, Consideration Transferred Measurement Input Type [Axis] Measurement Input Type [Axis] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Entity [Domain] Entity [Domain] Capitalized internal-use software, net Capitalized Computer Software, Net Multiemployer plans, withdrawal obligation, monthly payment amount Multiemployer Plans, Withdrawal Obligation, Monthly Payment Amount Multiemployer Plans, Withdrawal Obligation, Monthly Payment Amount 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] 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] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] 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 Shares withheld for taxes, net of other stock issuances Stock Issued During Period, Value, Other Life insurance assets, carrying amount Cash Surrender Value of Life Insurance 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 Payments for project financing Payments For Other Project Related Financing Payments For Other Project Related Financing Other liabilities, current and long-term portion Increase (Decrease) in Other Operating Liabilities Revenue [Line Items] Disaggregation of Revenue [Line Items] 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