Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Number of communications reportable segments Number of Communications Reportable Segments Number of Communications Reportable Segments Range [Domain] Statistical Measurement [Domain] Property and equipment, net Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Target Share Units Target Shares Target Shares [Member] Target Shares Accrued Insurance Claims [Line Items] Accrued Insurance Claims [Line Items] Accrued Insurance Claims [Line Items] Restricted cash Other current assets Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Remainder of 2027 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Intangible Assets, Gross (Excluding Goodwill) Intangible Assets, Gross (Excluding Goodwill) Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] RSUs outstanding (in shares) Share-based Compensation by Share-based Payment Award, Equity Awards Other than Options, Target Amount Share-based compensation by share-based payment award, equity awards other than options, target amount of performance shares Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Debt issuance costs Payments of Financing Costs Other (Expense) Income, Net Other Income and Other Expense Disclosure [Text Block] Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Leases [Abstract] Unbilled accounts receivable Unbilled Contracts Receivable Business combination, consideration transferred, equity interest, share issued, number of shares (in shares) Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Accounts payable Increase (Decrease) in Accounts Payable Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Power Solutions Power Solutions [Member] Power Solutions Carrying Value and Fair Value of Notes Fair Value, by Balance Sheet Grouping [Table Text Block] Business combination, consideration transferred, liabilities incurred Business Combination, Consideration Transferred, Liabilities Incurred Guarantor obligations, maximum exposure, undiscounted Guarantor Obligations, Maximum Exposure, Undiscounted Goodwill [Line Items] Goodwill [Line Items] Stock-based awards Share-Based Payment Arrangement [Member] Schedule of Non current Assets Schedule of Non current Assets [Table Text Block] Schedule of Non current Assets [Table Text Block] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Federal Funds Fed Funds Effective Rate Overnight Index Swap Rate [Member] Basic earnings per common share (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Debt Instrument, Variable Component [Axis] Debt Instrument, Variable Component [Axis] Debt Instrument, Variable Component Schedule Interest Rates for the Credit Agreement Schedule of Line of Credit Facilities [Table Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] 4.50% senior notes, net (mature April 2029) Senior Notes 4.50% Due April 2029 [Member] Senior Notes 4.50% Due April 2029 Net tax (deficiency) benefit Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Share-Based Payment Arrangement, Exercise of Option, Tax Benefit Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk, percentage Concentration Risk, Percentage Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Threshold Axis [Domain] Threshold Axis [Domain] Threshold Axis [Domain] Stock Options Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Proceeds from sale of assets Proceeds from Sale of Productive Assets Cash paid for taxes, net Income Taxes Paid Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Common stock, authorized (in shares) Common Stock, Shares Authorized Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting, Asset Reconciling Item [Line Items] Bridge Facility Bridge Facility [Member] Bridge Facility Fair value of 2029 Notes Notes Payable, Fair Value Disclosure Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Current assets: Assets, Current [Abstract] Total liabilities and stockholders’ equity Liabilities and Equity Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Stock Options, Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Maximum Maximum [Member] Weighted average remaining contractual life, shares exercisable (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Capital expenditures Segment, Expenditure, Addition to Long-Lived Assets Accounting Policies [Abstract] Accounting Policies [Abstract] Total Finite-Lived Intangible Assets, Net Operating Lease Liability Maturity Schedule Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Customer Concentration and Revenue Information Concentration Risk Disclosure [Text Block] Schedule of Share-based Compensation, RSU and Performance RSU Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Operating lease liability related to long-term operating leases Total Operating Lease, Liability Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Stock-based compensation (shares) Stock Issued During Period, Shares, Issued for Services Acquisitions Business Combination [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Other liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Threshold Two Threshold Two [Member] Threshold Two [Member] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Workers' compensation liability Workers' Compensation Liability Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Current portion of debt Less: current portion Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount 2030 Lessee, Operating Lease, Liability, to be Paid, Year Three Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Name Measure Name Accrued Insurance Claims [Abstract] Accrued Insurance Claims [Abstract] Operating lease liabilities Operating Lease, Liability, Current Deferred tax liabilities, net - non-current Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Building Systems Building Systems Segment [Member] Building Systems Segment Award Timing Method Award Timing Method [Text Block] Computer hardware and software Furniture and Fixtures [Member] Award Type [Axis] Award Type [Axis] Business Combination, Pro Forma Information Business Combination, Pro Forma Information [Table Text Block] Total assets Total assets Assets 2028 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol 2031 Lessee, Operating Lease, Liability, to be Paid, Year Four Share units vested (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Other current assets and inventories Increase Decrease In Other Current Assets And Inventory The increase (decrease) during the reporting period in other current assets and inventory held by the reporting entity. Performance Guarantee and Surety Bond Performance Guarantee and Surety Bond [Member] Performance guarantee and surety bond Deposits and other current assets Deposits Assets, Current Entity Address, City or Town Entity Address, City or Town Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Business Combination, Pro Forma Information [Line Items] Business Combination, Pro Forma Information [Line Items] Contract liabilities, net Contract With Customer, Liability, Net Contract With Customer, Liability, Net Other segment items Segment Reporting, Other Segment Item, Amount Estimated Useful Life (in years) Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount RSUs Restricted Stock Units (RSUs) [Member] Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Lessee, Operating Lease, Liability, To Be Paid, After Year Four Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Business combination, consideration transferred Business Combination, Consideration Transferred Business Combination, Intangible Asset, Acquired, Finite-Lived Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] 2031 Finite-Lived Intangible Asset, Expected Amortization, Year Four Backlog Intangibles Order or Production Backlog [Member] Entity Emerging Growth Company Entity Emerging Growth Company Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Operating lease right-of-use assets obtained in exchange for operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Beginning balance (in shares) Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Trade accounts receivable Billed Contracts Receivable 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] Less: Debt issuance costs Debt Issuance Costs, Net Accrued insurance claims Accrued insurance claims - current Accrued Insurance, Current Lessee, operating lease, lease not yet commenced, annual payments Lessee, Operating Lease, Lease Not Yet Commenced, Annual Payments Lessee, Operating Lease, Lease Not Yet Commenced, Annual Payments Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] % of Total Concentration Risk, Threshold Percentage Concentration Risk, Threshold Percentage Business Combination [Domain] Business Combination [Domain] Operating Lease Liabilities After Adoption Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Basis of Presentation Basis of Accounting [Text Block] Common stock, shares outstanding (in shares) Beginning balance (shares) Ending balance (shares) Common Stock, Shares, Outstanding Provision for (recovery of) bad debt, net Provision for (recovery of) bad debt Accounts Receivable, Credit Loss Expense (Reversal) PEO PEO [Member] Accounts Receivable, Contract Assets, and Contract Liabilities Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Contract assets Business Combination, Recognized Asset Acquired, Contract Asset Business Combination, Recognized Asset Acquired, Contract Asset Change in operating assets and liabilities, net of acquisitions: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Guarantor obligations, carrying value Guarantor Obligations, Current Carrying Value Schedule of Finite-Lived Intangible Assets, Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Retained Earnings Retained Earnings [Member] Debt instrument, effective interest rate Debt Instrument, Interest Rate, Effective Percentage Schedule of Other Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Cash, cash equivalents and restricted cash at beginning of period (Note 8) Cash, cash equivalents and restricted cash at end of period (Note 8) Cash and equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, 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Estimated Earnings [Member] Trade accounts receivable and costs and estimated earnings Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Business Combination [Table] Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Business Combination, Recognized Asset Acquired and Liability Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Goodwill adjustment from fiscal 2026 acquisitions Goodwill, Acquired During Period City Area Code City Area Code Cash paid for acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Proceeds from borrowings on senior credit agreement, including term loan Proceeds from Long-Term Lines of Credit Contract Assets and Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] General and administrative General and Administrative Expense Unrecognized compensation expense related to stock options Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Debt instrument, term Debt Instrument, Term Administrative Agent's Prime Rate And Secured Overnight Financing Rate Administrative Agent's Prime Rate And Secured Overnight Financing Rate [Member] Administrative Agent's Prime Rate And Secured Overnight Financing Rate Estimated Useful Lives (Years) Property, Plant and Equipment, Useful Life Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Total lease cost Lease, Cost Other current assets Business Combination, Recognized Asset Acquired, Other Asset, Current Interest expense, net Interest Income (Expense), Operating Goodwill Goodwill Beginning balance Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Lease Cost, Supplemental Balance Sheet, and Supplemental Cash Flows Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Depreciation expense Depreciation Remainder of 2027 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Assets Business Combination, Recognized Asset Acquired, Asset [Abstract] Non-cash lease expense Non-cash Lease Expense Non-cash Lease Expense Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Standby Letters of Credit Standby Letters of Credit [Member] Stock-based compensation Stock Issued During Period, Value, Issued for Services Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Concentration Risk [Table] Concentration Risk [Table] Number of reportable segments Number of Reportable Segments Supplemental disclosure of other cash flow activities and non-cash investing and financing activities: Supplemental Cash Flow Information [Abstract] Accounts receivable Business Combination, Recognized Asset Acquired, Receivable, Current Supplier finance program, payment timing, period Supplier Finance Program, Payment Timing, Period Goodwill, impaired, accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Other Performance Measure, Amount Other Performance Measure, Amount Stock Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Schedule of Restricted Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Entity Address, State or Province Entity Address, State or Province Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] Total current liabilities Liabilities, Current Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Net decrease in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Business combination, consideration transferred and preacquisition equity interest in acquiree Business Combination, Consideration Transferred and Preacquisition Equity Interest in Acquiree Individual: Individual [Axis] AT&T Inc. ATT [Member] AT&T[Member] Debt Instrument, Variable Component [Domain] Debt Instrument, Variable Component [Domain] Debt Instrument, Variable Component [Domain] Other current assets Other current assets Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Debt instrument, covenant compliance, consolidated interest coverage ratio, maximum Debt Instrument, Covenant Compliance, Consolidated Interest Coverage Ratio Debt Instrument, Covenant Compliance, Consolidated Interest Coverage Ratio Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Telecommunications Construction Contractor in Various States Telecommunications Construction Contractor in Various States [Member] Telecommunications Construction Contractor in Various States Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Accrued employee benefit and incentive plan costs Accrued Employee Benefits, Current Midwestern United States Telecommunications Construction Contractor Midwestern United States Telecommunications Construction Contractor [Member] Midwestern United States Telecommunications Construction Contractor Effective tax rate Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Lease cost under long-term operating leases Operating Lease, Cost Other non-current assets Other Non-current Deposits and Assets Other Non-current Deposits and Assets Total compensation cost not yet recognized, period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Options exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Buildings Building [Member] Schedule of Other Income, Net Interest and Other Income [Table Text Block] Segment Reporting Segment Reporting Disclosure [Text Block] Useful life Finite-Lived Intangible Assets, Remaining Amortization Period Goodwill [Table] Goodwill [Table] Credit Agreement - Term Loan Senior Loans [Member] Net carrying amount of 2029 Notes Debt and capital lease obligations Debt and Lease Obligation Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] UtiliQuest UtiliQuest [Member] A wholly-owned subsidiary of the Company. Other liabilities Business Combination, Recognized Liability Assumed, Other Liability, Noncurrent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Amortization of intangible assets Amortization of Intangible Assets Depreciation and amortization Depreciation, Depletion and Amortization Income taxes payable/receivable Increase (Decrease) in Income Taxes Receivable Other assets Other assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key Accrued insurance claims Accrued Insurance PEO Name PEO Name Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Credit Agreement - Revolving facility Revolving Credit Facility [Member] Lumen Technologies Lumen Technologies [Member] Customer that represents a significant portion of the Company's customer base. Automobile Liability And General Liabillity Automobile Liability And General Liabillity [Member] Automobile Liability And General Liabillity Arrangement Duration Trading Arrangement Duration Invoices received Supplier Finance Program, Obligation, Addition Segments [Axis] Segments [Axis] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Stock-Based Awards Share-Based Payment Arrangement [Text Block] Repurchase of common stock, including applicable excise tax (shares) Stock Repurchased and Retired During Period, Shares Cash and equivalents Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Debt instrument, covenant compliance, consolidated leverage ratio, maximum Debt Instrument, Covenant Compliance, Consolidated Leverage Ratio Debt Instrument, Covenant Compliance, Consolidated Leverage Ratio ASSETS Assets [Abstract] Long-term debt Long-term debt Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2030 Finite-Lived Intangible Asset, Expected Amortization, Year Three Supplier Finance Program Supplier Finance Program [Table Text Block] Debt Instrument [Axis] Debt Instrument [Axis] Forfeited or cancelled (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Business Combination [Line Items] Business Combination [Line Items] Credit Facility [Domain] Credit Facility [Domain] Stockholders’ equity: Equity, Attributable to Parent [Abstract] 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] Entity Address, Address Line One Entity Address, Address Line One Treasury stock, value, acquired, cost method Treasury Stock, Value, Acquired, Cost Method Debt, interest rate (in percent) Debt Instrument, Interest Rate, Stated Percentage Less: allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Share-based payment arrangement, shares withheld for tax withholding obligation (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Operating lease liabilities - non-current Operating Lease, Liability, Noncurrent Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Fair Value as of Grant Date Award Grant Date Fair Value Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Capitalized cloud computing implementation costs Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization Other assets Increase (Decrease) in Other Noncurrent Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Schedule of Long-term Debt Instruments Schedule of Long-Term Debt Instruments [Table Text Block] Accrued Insurance Claims [Table] Accrued Insurance Claims [Table] Accrued Insurance Claims Potential common stock arising from stock options, and unvested restricted share units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Total Costs and Expenses Shares cancelled (in shares) Forfeited or cancelled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Document Quarterly Report Document Quarterly Report Convertible debt, closing trading price per $100 Convertible Debt, Closing Trading Price Per $100 Convertible Debt, Closing Trading Price Per $100 Segment, Reconciliation of Other Items from Segments to Consolidated Segment, Reconciliation of Other Items from Segments to Consolidated [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Accrued insurance claims - non-current Accrued insurance claims - non-current Accrued Insurance, Noncurrent 2029 Lessee, Operating Lease, Liability, to be Paid, Year Two Accrued Insurance Claims Accrued Insurance Claims Disclosure [Text Block] The entire disclosure for accrued insurance claims Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Outstanding Indebtedness Schedule of Debt [Table Text Block] Office furniture and equipment Machinery and Equipment [Member] Granted (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Basis of Presentation [Abstract] Basis of Presentation [Abstract] Basis of Presentation [Abstract] Schedule of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Principal payments on senior credit agreement, including term loan Repayments of Long-Term Lines of Credit Restatement Determination Date: Restatement Determination Date [Axis] Payment to acquire business, net of cash acquired Payments to Acquire Businesses, Gross Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding amount Letters of Credit Outstanding, Amount Business Combination, Pro Forma Information [Table] Business Combination, Pro Forma Information [Table] Liabilities Business Combination, Recognized Liability Assumed, Liability [Abstract] Unrestricted cash and cash equivalents threshold Unrestricted Cash and Cash Equivalents Credit Agreement Threshold Unrestricted Cash and Cash Equivalents Credit Agreement Threshold Land Land [Member] Name Trading Arrangement, Individual Name Equity Award [Domain] Award Type [Domain] 2028 Lessee, Operating Lease, Liability, to be Paid, Year One Equity Awards Adjustments Equity Awards Adjustments [Member] Leasehold improvements Leasehold Improvements [Member] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Compensation Amount Outstanding Recovery Compensation Amount Debt instrument, face amount Debt Instrument, Face Amount Schedule of Stock-based Compensation Expense and Related Tax Benefit Recognized Share-Based Payment Arrangement, Activity [Table Text Block] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Contract liabilities, revenues recognized Contract with Customer, Liability, Revenue Recognized Business combination, consideration transferred, equity interest Business Combination, Consideration Transferred, Equity Interest MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name Other Accrued Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Beginning balance (in dollars per shares) Ending balance (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Restricted cash Other assets (long-term) Restricted Cash, Noncurrent Other Current Assets and Other Assets Other Assets Disclosure [Text Block] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Commercial Letters of Credit Commercial Letters of Credit [Member] Commercial Letters of Credit [Member] Retainage Contract Receivable Retainage and Other Receivables Contract Receivable Retainage and Other Receivables Threshold One Threshold One [Member] Threshold One [Member] Segments [Domain] Segments [Domain] Performance RSUs Performance Shares [Member] Additional borrowing availability Line of Credit Facility, Remaining Borrowing Capacity Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Inventories Inventory, Net Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Minimum Minimum [Member] Total assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Per Share Data Earnings Per Share, Policy [Policy Text Block] Company Selected Measure Name Company Selected Measure Name Fair Value Measurement [Domain] Fair Value Measurement [Domain] Net income Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Senior Notes Senior Notes [Member] Hosting arrangement, service contract, implementation cost, capitalized, accumulated amortization Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, Accumulated Amortization Debt Debt Disclosure [Text Block] Preferred stock, par value $1.00 per share: 1,000,000 shares authorized: no shares issued and outstanding Preferred Stock, Value, Issued Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accrued construction costs and other accrued purchase orders Accrued Construction Costs, Current Accrued construction costs. Accounts payable Accounts Payable, Current Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Total liabilities Business Combination, Recognized Liability Assumed, Liability All Executive Categories All Executive Categories [Member] Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Number of states with state-sponsored insurance fund Number of States with State-Sponsored Insurance Fund Number of States with State-Sponsored Insurance Fund Equipment and machinery Computer Hardware and Software [Member] Computer hardware and software. Common stock, par value $0.33 1/3 per share: 150,000,000 shares authorized: 30,024,974 and 29,969,648 issued and outstanding, respectively Common Stock, Value, Issued Goodwill [Roll Forward] Goodwill [Roll Forward] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Diluted (in shares) Total shares-diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Segment Information Segment Reporting, Policy [Policy Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Reconciliation of Assets from Segment to Consolidated [Table] Reconciliation of Assets from Segment to Consolidated [Table] Accrued Insurance Claims and Insurance Recoveries/Receivables Accrued Insurance Disclosure [Table Text Block] Accrued Insurance Disclosure [Table Text Block] Intangible assets, net Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived Business Combination [Axis] Business Combination [Axis] Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Supplier Finance Program Supplier Finance Program [Text Block] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Other assets Business Combination, Recognized Asset Acquired, Other Asset, Noncurrent Supplier Finance Program, Obligation [Roll Forward] Supplier Finance Program, Obligation [Roll Forward] Customer Credit Concentration Schedule that Represents A Significant Portion of the Company’s Customer Base and Each Over 10% of Total Revenue Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Underlying Securities Award Underlying Securities Amount Concentration Risk Concentration Risk [Line Items] Equity Component [Domain] Equity Component [Domain] Insurance coverage threshold per policy Insurance Coverage Threshold Per Policy Insurance Coverage Threshold Per Policy Document Period End Date Document Period End Date PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Income Taxes Income Tax Disclosure [Text Block] Allowance for credit losses at beginning of period Allowance for credit losses at end of period Accounts Receivable, Allowance for Credit Loss Accounting Standards [Abstract] Accounting Standards [Abstract] Accounting Standards [Abstract] Supplemental Shares Supplemental Shares Supplemental Shares [Member] Supplemental Shares Deferred financing costs Other Deferred Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Lease cost under short-term operating leases Short-Term Lease, Cost Scenario [Axis] Scenario [Axis] Shares acquired, average cost per share (in dollars per share) Shares Acquired, Average Cost Per Share Risks and Uncertainties [Abstract] Risks and Uncertainties [Abstract] Document Type Document Type Reconciliation of Assets from Segment to Consolidated Reconciliation of Assets from Segment to Consolidated [Table Text Block] Computation of Earnings Per Common Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Product and Service [Axis] Product and Service [Axis] Variable lease cost under short-term and long-term operating leases Variable Lease, Cost Contract revenues Revenue from Contract with Customer, Excluding Assessed Tax All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Capital expenditures Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Total current assets Assets, Current Range [Axis] Statistical Measurement [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Amount authorized to repurchase shares Share Repurchase Program, Authorized, Amount Unutilized commitment fee (in percent) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Verizon Communications Inc. Verizon Communications Inc. [Member] Customer that represents a significant portion of the Company's customer base. Vehicles Vehicles [Member] Receivables on equipment sales Other Receivables, Net, Current Communications Communications Segment [Member] Communications Segment Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Restricted stock tax withholdings Restricted stock tax withholdings Payment, Tax Withholding, Share-Based Payment Arrangement Term Loan A Facility Term Loan A Facility [Member] Term Loan A Facility Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Contract liabilities Business Combination, Recognized Liability Assumed, Contract Liabilities Business Combination, Recognized Liability Assumed, Contract Liabilities Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Insurance recoveries/receivables Insurance Settlements Receivable Current liabilities: Liabilities, Current [Abstract] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Lessee, Lease, Description Lessee, Lease, Description 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Allowance for Credit Loss, Current Term Loan B Facility Term Loan B Facility [Member] Term Loan B Facility Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Title of 12(b) Security Title of 12(b) Security Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Accrued payroll and related taxes Accrued Payroll Taxes, Current Earnings per common share: Earnings Per Share [Abstract] Earnings Per Share [Abstract] 2032 Lessee, Operating Lease, Liability, to be Paid, Year Five Non-compete agreements Noncompete Agreements [Member] Consolidation Items [Domain] Consolidation Items [Domain] Other (expense) income, net Other (expense) income, net Nonoperating Income (Expense) Convertible debt, closing price determination value Convertible Debt, Closing Price Determination Value Convertible Debt, Closing Price Determination Value Repurchase of common stock, including applicable excise tax Stock Repurchased and Retired During Period, Value National Technology Integrators, LLC National Technology Integrators, LLC [Member] National Technology Integrators, LLC Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Treasury stock, shares, acquired (in shares) Treasury Stock, Shares, Acquired Options exercised (in dollars per shares) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Two Award Timing Disclosures [Line Items] Fair value of principal amount of 2029 Notes Long-Term Debt, Gross Options granted (in dollars per shares) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Charter Communications Charter Communications [Member] Charter Communications Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Total lease payments Lessee, Operating Lease, Liability, to be Paid Operating lease renewal term Lessee, Operating Lease, Renewal Term Trade names Trade Names [Member] Accounting Period Fiscal Period, Policy [Policy Text Block] Net income Net income Net income available to common stockholders (numerator) Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Expiration Date Trading Arrangement Expiration Date 2032 Finite-Lived Intangible Asset, Expected Amortization, Year Five Other accrued liabilities Other accrued liabilities Other Accrued Liabilities, Current Share-based compensation arrangement by share-based payment award, award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Property and equipment, net Property and equipment, net Property, Plant and Equipment, Net Preferred stock, shares authorized (in shares) Preferred Stock, Shares 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End Date Current Fiscal Year End Date Total other customers combined Other Customers [Member] Other Customers [Member] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Other accrued liabilities Business Combination, Recognized Liability Assumed, Other Liability, Current Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Accounts Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Payables and Accruals [Abstract] Payables and Accruals [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Miscellaneous expense, net Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Deferred income tax provision (benefit) Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income to net cash used in operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Revenue Benchmark Revenue Benchmark [Member] Net Assets Acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Insurance recoveries/receivables: Nontrade Receivables, Unclassified [Abstract] Variable Rate [Domain] Variable Rate [Domain] Contract liabilities Contract with Customer, Liability Cash and Cash Equivalents [Abstract] Cash and Cash Equivalents [Abstract] Anti-dilutive weighted shares excluded from the calculation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Shares used in computing earnings per common share: Weighted Average Number of Shares Outstanding, Diluted [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Amendment Flag Amendment Flag Income tax effect of stock-based compensation Share-Based Payment Arrangement, Expense, Tax Benefit Business acquisition, goodwill and intangible assets, expected tax deductible amount Business Acquisition, Goodwill And Intangible Assets, Expected Tax Deductible Amount Business Acquisition, Goodwill And Intangible Assets, Expected Tax Deductible Amount Leases Lessee, Operating Leases [Text Block] Termination Date Trading Arrangement Termination Date Net cash (used in) provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Contract assets, net Increase (Decrease) in Contract with Customer, Asset Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Insurance liability, annual retained risk loss Insurance Liability, Annual Retained Risk of Loss, Under Employee Health Plan Per Participant Annual retained risk of loss under the employee health plan. Measure: Measure [Axis] Contract assets Contract with Customer, Asset, before Allowance for Credit Loss Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Five Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Schedule of Share-based Compensation, Stock Options Award Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Significant Accounting Policies and Estimates Basis of Presentation and Significant Accounting Policies [Text Block] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Basic (in shares) Weighted-average number of common shares (in shares) Weighted Average Number of Shares Outstanding, Basic Remaining authorized repurchase amount Share Repurchase Program, Remaining Authorized, Amount Costs of earned revenues, excluding depreciation and amortization Cost of Goods and Service, Excluding Depreciation, Depletion, and Amortization Schedule of Earnings Per Share Reconciliation Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Swingline Loans Swingline Loans [Member] Swingline Loans Exercisable options (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Confirmed obligations outstanding at the beginning of the year Confirmed obligations outstanding at the end of the year Supplier Finance Program, Obligation Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Amortization of debt issuance costs and other Amortization of Debt Issuance Costs Entity Tax Identification Number Entity Tax Identification Number Scenario [Domain] Scenario [Domain] Amounts charged against the allowance Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) Total Accounts Receivable, before Allowance for Credit Loss Less: Original Issue Discount Debt Instrument, Unamortized Discount Beginning balance (in dollars per shares) Ending balance (in dollars per shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, issued (in shares) Common Stock, Shares, Issued Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents Disclosure [Text Block] Income tax receivable Income Taxes Receivable, Current Weighted average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Capital Stock Capital Stock [Text Block] The entire disclosure of share repurchases under the current and prior share repurchase authorizations. Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Insurance recoveries/receivables for accrued insurance claims Non-current (included in Other assets) Insurance Settlements Receivable, Noncurrent Restricted cash included in: Restricted Cash [Abstract] Use of Estimates Use of Estimates, Policy [Policy Text Block] Guarantor Obligations, Nature [Axis] Guarantor Obligations, Nature [Axis] Invoices paid Supplier Finance Program, Obligation, Settlement Schedule of Goodwill Schedule of Goodwill [Table Text Block] Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Loss Contingencies [Line Items] Loss Contingencies [Line Items] Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Corporate Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Security Exchange Name Security Exchange Name Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding [Roll Forward] Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Insurance liability Insurance Liability Insurance Liability Goodwill and Intangible Asset Impairment Goodwill and Intangible Asset Impairment Total liabilities Liabilities Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Purchases of capital assets included in accounts payable or other accrued liabilities at period end Capital Expenditures Incurred but Not yet Paid Line of credit maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Prepaid expenses Prepaid Expense, Current Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Other current liabilities Other Liabilities, Current Incremental Facility, Minimum Incremental Facility, Minimum [Member] Incremental Facility, Minimum - minimum capacity for additional revolver facility Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Variable Rate [Axis] Variable Rate [Axis] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and equivalents Cash and Cash Equivalent Issuance of restricted stock, net of tax withholdings Restricted Stock, Value, Shares Issued Net of Tax Withholdings Subsequent Event [Line Items] Subsequent Event [Line Items] Common Stock Common Stock [Member] Share units vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member]