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by (Used in) Operating Activity [Abstract] 2029 Long-Term Debt, Maturity, Year Three Less: write-offs charged against the allowance Accounts Receivable, Allowance for Credit Loss, Writeoff Estimated Fair Value Intangible Asset, Finite-Lived, Acquired Share-Based Payment Arrangement [Abstract] Financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment, net of accumulated depreciation of $187,037 and $174,914, respectively Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Operating revenues Operating revenues Revenue from Contract with Customer, Excluding Assessed Tax Quarterly debt interest payment Debt Instrument, Periodic Payment, Interest Unit-price Unit Price Contract [Member] Unit Price Contract Net change during period Increase (Decrease) in Receivables, Net, Current Increase (Decrease) in Receivables, Net, Current Components of Certain Equipment Leased to Third Parties Under Operating Leases Property, Plant, and Equipment, Lessor Asset under Operating Lease [Table Text Block] Surety bond Surety Bond [Member] Other income, net Other Income Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Goodwill and Other Intangible Assets, Net Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Fair value Estimate of Fair Value Measurement [Member] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Prepaid expenses Prepaid Expense, Current Other current liabilities Increase (Decrease) in Other Current Liabilities Inventories, net Increase (Decrease) in Inventories Quarterly debt amortization payment Debt Instrument, Periodic Payment, Principal Weighted average discount rate (in percentages) Operating Lease, Weighted Average Discount Rate, Percent Segment Reporting [Table] Segment Reporting [Table] Available for grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Net contract liabilities Balance at beginning of period Balance at end of period Contract With Customer, Asset (Liability), Net, Current Contract With Customer, Asset (Liability), Net, Current Schedule of Maturities of Long-Term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Related Party Transaction [Table] Related Party Transaction [Table] Acquiree revenue since acquisition Business Combination, Acquiree's Revenue since Acquisition Date, Actual Summary of Operating Leases, Including Lease Costs, Lease Terms, Discount Rates and Supplemental Cash Flow Information Lease, Cost [Table Text Block] Other current assets Other Assets, Current Weighted-average interest rate Long-Term Debt, Weighted Average Interest Rate, at Point in Time Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Balance as of December 31, 2025 Balance as of June 30, 2026 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Cash, cash equivalents and restricted cash Business Combination, Recognized Asset Acquired, Cash, Cash Equivalent And Restricted Cash Business Combination, Recognized Asset Acquired, Cash, Cash Equivalent And Restricted Cash Operating income Operating Income (Loss) Less: billings to date Construction Contractor, Billings To Date Construction Contractor, Billings To Date Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Cash surrender value Cash Surrender Value [Member] Central Cash Management Central Cash Management [Member] Central Cash Management Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Acquisition Business Combination [Text Block] Vehicles Vehicles [Member] Lessee Lease Description [Domain] Lessee Lease Description [Domain] Lessee Lease Description [Domain] Operating lease not yet commenced Unrecorded Unconditional Purchase Obligation Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Utility Utility [Member] Utility Proceeds from insurance contracts Proceeds from Life Insurance Policy Market condition target allocation (as a percentage) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Market Target Allocation, Percentage Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Market Target Allocation, Percentage Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Pro forma Pro Forma [Member] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Customer two Customer Two [Member] Customer Two Finished goods Inventory, Finished Goods, Gross Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Equity in earnings of unconsolidated affiliates, net of distributions Income (Loss) from Equity Method Investments, Net of Dividends or Distributions Equity Components [Axis] Equity Components [Axis] Related party Related Party [Member] Income taxes paid, net Income Tax Paid, after Refund Received Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Fixed maximum amounts guaranteed remainder of year 2026 Guarantor, Fixed Maximum Amounts Guaranteed, Remainder of Year Guarantor, Fixed Maximum Amounts Guaranteed, Remainder of Year Entity Interactive Data Current Entity Interactive Data Current Variable Rate [Axis] Variable Rate [Axis] Acquiree net income since acquisition Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Thereafter Lessee, Operating Lease, Liability, to be Paid, Due After Year Four Lessee, Operating Lease, Liability, to be Paid, Due After Year Four Entity Small Business Entity Small Business 2029 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Shares withheld for taxes (in shares) 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Arrangement Duration Trading Arrangement Duration Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Fixed maximum amounts guaranteed by year 2028 Guarantor, Fixed Maximum Amounts Guaranteed, Year Two Fixed maximum amounts guaranteed by year two. Work in process Inventory, Work in Process, Gross Change during period, net of acquisition effects Increase (Decrease) in Net Contract Assets (Liabilities) Increase (Decrease) in Net Contract Assets (Liabilities) Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingent liabilities Commitments and Contingencies Intangible assets, gross Intangible Asset, Finite-Lived, before Accumulated Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Income from equity method investments Income (Loss) from Equity Method Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Receivable Type [Axis] Receivable Type [Axis] Long Term Incentive Plan (LTIP) Long Term Incentive Plan [Member] Long Term Incentive Plan Vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Goodwill [Roll Forward] Goodwill [Roll Forward] Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Schedule of Assets and Liabilities Measured on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Inventories, net Inventories, net Inventory, Net All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fixed maximum amounts guaranteed by year 2027 Guarantor, Fixed Maximum Amounts Guaranteed, Year One Fixed maximum amounts guaranteed by year one. Remainder of 2026 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Fair Value Measurements Fair Value Disclosures [Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Variable Interest Entity [Table] Variable Interest Entity [Table] Cash paid for amounts included in the measurement of lease liabilities: Supplemental Cash Flow Information [Abstract] 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Operating lease term Lessee, Operating Lease, Term of Contract Contingent consideration Contingent Consideration [Member] Contingent Consideration Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] PEO Name PEO Name Total lease payments Lessor, Operating Lease, Payment to be Received Costs and estimated earnings on uncompleted contracts Construction Contractor, Costs Incurred On Uncompleted Contracts And Estimated Earnings Construction Contractor, Costs Incurred On Uncompleted Contracts And Estimated Earnings Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Contingent consideration measurement input Business Combination, Contingent Consideration, Liability, Measurement Input Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Interest expense Interest Expense, Debt Liability Class [Axis] Liability Class [Axis] Identifiable assets acquired and liabilities assumed: Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill [Abstract] Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Revenue from Contracts with Customers Revenue [Policy Text Block] Cash, cash equivalents and restricted cash Cash, cash equivalents and restricted cash - beginning of period Cash, cash equivalents and restricted cash - end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Thereafter Finite-Lived Intangible Asset, Expected Amortization, After Year Four Finite-Lived Intangible Asset, Expected Amortization, After Year Four Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Base rate Base Rate [Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Employees Share-Based Payment Arrangement, Employee [Member] Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Cash paid to acquire business Cash Payments to Acquire Businesses, Gross Stock-based compensation costs Share-Based Payment Arrangement, Noncash Expense 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Total lease costs Lease, Cost Customer [Domain] Customer [Domain] Schedule of Inventory, Net Schedule of Inventory, Current [Table Text Block] Leases Lessee, Operating Leases [Text Block] 2027 Long-Term Debt, Maturity, Year One Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Contract Liabilities, Net Contract with Customer, Liability, Current [Roll Forward] Contract with Customer, Liability, Current Basic (in dollars per share) EPS - basic (in dollars per share) Earnings Per Share, Basic Measurement Input Type [Axis] Measurement Input Type [Axis] Contract liabilities, net Contract liabilities, net Balance at beginning of period Balance at end of period Contract with Customer, Liability, Current Risk-free rate Measurement Input, Risk Free Interest Rate [Member] Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Intangible Asset, Indefinite-Lived, Acquired [Line Items] Intangible Asset, Indefinite-Lived, Acquired [Line Items] Contracts in progress Receivables, Contracts in Progress [Member] Receivables, Contracts in Progress Long-term debt, net of unamortized issuance costs Long-term debt Long-Term Debt, Excluding Current Maturities Award Type Award Type [Axis] Short-term lease cost Short-Term Lease, Cost Remainder of 2026 Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Schedule of Operating Lease Income Operating Lease, Lease Income [Table Text Block] Operating lease cost Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Interest expense on outstanding borrowings Interest Expense, Debt, Excluding Amortization Concentration risk (as a percentage) Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Total liabilities and stockholders’ equity Liabilities and Equity Variable lease cost Variable Lease, Cost Employee Stock Option Share-Based Payment Arrangement, Option [Member] Consolidated total net leverage ratio, maximum Debt Instrument, Covenant, Consolidated Total Net Leverage Ratio, Maximum Debt Instrument, Covenant, Consolidated Total Net Leverage Ratio, Maximum Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Schedule of the Maturity of Lessor Undiscounted Cash Flows Lessor, Operating Lease, Payment to be Received, Maturity [Table Text Block] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Asset Class [Axis] Asset Class [Axis] Plan Name [Axis] Plan Name [Axis] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Summary of Receivables, Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Tabular List, Table Tabular List [Table Text Block] Vesting [Axis] Vesting [Axis] Other noncurrent changes Increase (Decrease) in Other Noncurrent Liabilities 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Remainder of 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Number of shares granted and unsettled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Granted And Unsettled Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Granted And Unsettled Noncurrent assets: Assets, Noncurrent [Abstract] General corporate expenses General and Administrative Expense Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Materials and supplies Inventory, Raw Materials and Supplies, Gross Receivables, net of allowance for credit losses of $5,365 and $5,282, respectively Receivables, net Balance at beginning of period Balance at end of period Receivables, Net, Current Fixed maximum amounts guaranteed by year 2029 Guarantor, Fixed Maximum Amounts Guaranteed, Year Three Fixed maximum amounts guaranteed by year three. Adjustment to Compensation: Adjustment to Compensation [Axis] Other Other Receivables, Gross, Current Fixed maximum amounts guaranteed by year 2030 Guarantor, Fixed Maximum Amounts Guaranteed, Year Four Fixed maximum amounts guaranteed by year four. Schedule of Finite-Lived Intangible Assets Acquired Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Guarantor obligations outstanding Guarantor Obligations, Outstanding Guarantor Obligations, Outstanding Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Interest paid Interest Paid, Excluding Capitalized Interest, Operating Activity Capital expenditures Payments to Acquire Productive Assets Statement of Cash Flows [Abstract] Renewables Renewables [Member] Renewables Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets measured at fair value Assets, Fair Value Disclosure Name Measure Name Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Including Equity Method Investments, Percent Effective Income Tax Rate Reconciliation, Including 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Company Selected Measure Amount Business Combination, Intangible Asset, Acquired, Indefinite-Lived [Table] Business Combination, Intangible Asset, Acquired, Indefinite-Lived [Table] Schedule of Segment Reconciliation of Profit (Loss) by Segment to Consolidated Segment Reporting, Reconciliation of Profit (Loss) by Segment to Consolidated [Table Text Block] Depreciation and amortization expense Depreciation, Depletion and Amortization SOFR Secured Overnight Financing Rate (SOFR) [Member] Unexecuted change orders Construction Contractor, Contract Cost, Subject To Uncertainty, Unexecuted Change Order, Amount Construction Contractor, Contract Cost, Subject To Uncertainty, Unexecuted Change Order, Amount Stock-based compensation (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Current assets: Assets, Current [Abstract] Weighted average remaining lease term (in years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Cost reimbursable Cost Reimbursable Contract [Member] Cost Reimbursable Contract Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Impairments of finite-lived intangible assets Intangible Asset, Finite-Lived, Impairment Loss Income taxes Income tax expense Income Tax Expense (Benefit) Forfeited (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Customer concentration risk Customer Concentration Risk [Member] Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Performance condition target allocation (as a percentage) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Target Allocation, Percentage Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Performance Target Allocation, Percentage Contingent consideration, maximum amount Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Fixed maximum amounts guaranteed after year 2030 Guarantor, Fixed Maximum Amounts Guaranteed, After Year Four Guarantor, Fixed Maximum Amounts Guaranteed, After Year Four VIE, primary beneficiary Variable Interest Entity, Primary Beneficiary [Member] Lease commencing August 2026 Lease Commencing August 2026 [Member] Lease Commencing August 2026 Tranche three Share-Based Payment Arrangement, Tranche Three [Member] Net income Net income Net Income (Loss) Attributable to Parent Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Corporate joint venture Corporate Joint Venture [Member] Statement [Table] Statement [Table] Tranche two Share-Based Payment Arrangement, Tranche Two [Member] Restatement Determination Date: Restatement Determination Date [Axis] Nonemployee directors Share-Based Payment Arrangement, Nonemployee [Member] Summary of Remaining Performance Obligations and Expected Revenue Recognition Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block] Interest income Investment Income, Interest Summary of Uncompleted Contracts and Contract Assets and Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Schedule of Indefinite-Lived Intangible Assets Acquired Business Combination, Intangible Asset, Acquired, Indefinite-Lived [Table Text Block] Credit loss recoveries collected Accounts Receivable, Allowance for Credit Loss, Recovery Basis of Presentation and Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]