Cover [Abstract] Document Information [Table] Document Information [Line Items] Entity Central Index Key Document Type Document Quarterly Report Document Transition Report Document Period End Date Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, Postal Zip Code Entity Address, State or Province City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Year Focus Amendment Flag CONDENSED CONSOLIDATED BALANCE SHEETS Statement [Table] Statement [Line Items] Assets [Abstract] Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents Restricted Cash, Current Restricted cash Accounts Receivable, Net, Current Accounts receivable, net of allowance for doubtful accounts of $898 and $866 at June 28, 2024 and December 29, 2023, respectively Contract with Customer, Asset, and Construction Contractor, Receivable, Retainage, after Allowance for Credit Loss, Current Contract with Customer, Asset, and Construction Contractor, Receivable, Retainage, after Allowance for Credit Loss, Current Contract assets Other Receivables, Net, Current Other receivables Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Equipment and leasehold improvements, net Equipment and leasehold improvements, net Goodwill Goodwill at end of period Goodwill at beginning of period Goodwill Operating Lease, Right-of-Use Asset Right-of-use assets Finite-Lived Intangible Assets, Net Other intangible assets, net Other Assets, Noncurrent Other assets Deferred Income Tax Assets, Net Deferred income taxes, net Assets Segment assets Total assets Liabilities and Equity [Abstract] Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued liabilities Total accrued liabilities Contract with Customer, Liability, Current Contract liabilities Notes Payable, Current Notes payable Finance Lease, Liability, Current Less: Current obligations Finance lease obligations Operating Lease, Liability, Current Lease liability Less: Current obligations Liabilities, Current Total current liabilities Notes Payable, Noncurrent Notes payable, less current portion Finance Lease, Liability, Noncurrent Noncurrent lease obligations Finance lease obligations, less current portion Operating Lease, Liability, Noncurrent Noncurrent lease obligations Lease liability, less current portion Other Liabilities, Noncurrent Other noncurrent liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies Equity, Attributable to Parent [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock, $0.01 par value, 10,000 shares authorized, no shares issued and outstanding Common Stock, Value, Issued Common stock, $0.01 par value, 40,000 shares authorized; 13,916 and 13,682 shares issued and outstanding at June 28, 2024 and December 29, 2023, respectively Additional Paid in Capital, Common Stock Additional paid-in capital Accumulated other comprehensive loss Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Accounts Receivable, after Allowance for Credit Loss, Current [Abstract] Accounts Receivable, after Allowance for Credit Loss, Current Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts Preferred Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Preferred stock Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized (in shares) Preferred Stock, Shares Issued Preferred stock, shares issued (in shares) Preferred Stock, Shares Outstanding Preferred stock, shares outstanding (in shares) Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract] Common stock Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Balance (in shares) Balance (in shares) Common stock, shares issued (in shares) Common Stock, Shares, Outstanding Common stock, shares outstanding (in shares) CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME Revenue from Contract with Customer, Excluding Assessed Tax Contract revenue Revenue Cost of Revenue [Abstract] Direct costs of contract revenue (inclusive of directly related depreciation and amortization): Cost of Services, Direct Labor Salaries and wages Subcontractor service costs and other direct costs incurred directly related to services rendered by an entity during the reporting period. Cost of Subcontractor Services and Other Direct Costs Subcontractor services and other direct costs Cost of Revenue Total direct costs of contract revenue Gross Profit Gross profit Operating Expenses [Abstract] General and administrative expenses: The aggregate amount of expenditures for salaries and wages (excluding the portion of technical and nontechnical salaries and wages incurred in connection with revenue producing projects) and payroll taxes, bonuses and employee benefit costs for all company personnel, excluding equity-based compensation. Labor and Related Expense Excluding Stock Based Compensation Salaries and wages, payroll taxes and employee benefits Payroll taxes, bonuses and employee benefit costs for all Company personnel Occupancy, Net Facilities and facility related Share-based Compensation Stock-based compensation Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Other Selling, General and Administrative Expense Other Operating Expenses Total general and administrative expenses Operating Income (Loss) Income (Loss) from operations Nonoperating Income (Expense) [Abstract] Other income (expense): Interest Income (Expense), Nonoperating, Net Interest expense, net Interest expense, net Other Nonoperating Income (Expense) Other, net Nonoperating Income (Expense) Total other expense, net Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest Segment profit (loss) before income tax expense Income (Loss) before income taxes Income Tax Expense (Benefit) Income tax expense (benefit) Income tax (benefit) expense Net income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Unrealized gain (loss) on derivative contracts, net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) Earnings Per Share, Diluted [Abstract] Earnings (Loss) per share: Earnings Per Share, Basic Basic (in dollars per share) Earnings Per Share, Diluted Diluted (in dollars per share) Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average shares outstanding: Weighted Average Number of Shares Outstanding, Basic Basic (in shares) Weighted-average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted-average common shares outstanding-diluted (in shares) Diluted (in shares) Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Equity Component [Domain] Parent [Member] Common Stock [Member] Common Stock Additional Paid-in Capital [Member] Additional Paid-in Capital AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Loss Retained Earnings [Member] Retained Earnings Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance Balance Stock Issued During Period, Value, Employee Stock Purchase Plan Shares of common stock issued in connection with employee stock purchase plan Stock Issued During Period, Shares, Employee Stock Purchase Plans Shares of common stock issued in connection with employee stock purchase plan (in shares) Stock Issued During Period, Value, Stock Options Exercised Shares of common stock issued in connection with incentive stock plan Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Shares of common stock issued in connection with incentive stock plan (in shares) Shares Used to Pay Taxes on Stock Grants, Value Shares used to pay taxes on stock grants Shares Used to Pay Taxes on Stock Grants, Shares Shares used to pay taxes on stock grants (in shares) Stock Issued During Period, Value, Restricted Stock Award, Gross Issuance of restricted stock award and units Stock Issued During Period, Shares, Restricted Stock Award, Gross Issuance of restricted stock award and units (in shares) Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Stock-based compensation expense Other Comprehensive Income (Loss), Net of Tax Net current-period other comprehensive income (loss) Net unrealized gain on derivative contracts CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Other Noncash Income (Expense) Other non-cash items Deferred Income Tax Expense (Benefit) Deferred income taxes, net Gain (Loss) on Disposition of Property Plant Equipment (Gain) loss on sale/disposal of equipment The cash flow impact of the provision for doubtful accounts. Provision for Doubtful Accounts Cash Flow Impact Provision for doubtful accounts Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of effects from business acquisitions: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Contract with Customer, Asset Contract assets Increase (Decrease) in Other Receivables Other receivables Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Contract with Customer, Liability Contract liabilities Amount of increase (decrease) in right of use assets. Increase (Decrease) in Right-of-Use Assets Right-of-use assets Net Cash Provided by (Used in) Operating Activities Net cash (used in) provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Purchase of equipment, software, and leasehold improvements Proceeds from Sale of Property, Plant, and Equipment Proceeds from sale of equipment Net Cash Provided by (Used in) Investing Activities Net cash (used in) provided by investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Amount of cash payments resulting from the contingent consideration arrangement. Business Acquisition, Contingent Consideration, Cash Payment Payments on contingent consideration Payments for Cash Deposits Held in Trust for Energy Incentive Rebate Payments, Restricted Cash, Financing Activities Payments for Cash Deposits Held in Trust for Energy Incentive Rebate Payments, Restricted Cash, Financing Activities Payment on restricted cash Repayments of Notes Payable Payments on notes payable Proceeds from Lines of Credit Borrowings under term loan facility and line of credit Repayments of Lines of Credit Repayments under term loan facility and line of credit Repayments of Long-term Capital Lease Obligations Principal payments on finance leases Financing cash flow from finance leases Proceeds from Stock Options Exercised Proceeds from stock option exercise Proceeds from Stock Plans Proceeds from sales of common stock under employee stock purchase plan Payments for Repurchase of Other Equity Cash used to pay taxes on stock grants Net Cash Provided by (Used in) Financing Activities Net cash (used in) provided by financing activities Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net increase (decrease) in cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents and restricted cash at end of period Cash, cash equivalents and restricted cash at beginning of period Total cash, cash equivalents, and restricted cash shown in the consolidated statement of cash flows Supplemental Cash Flow Information [Abstract] Cash paid (received) during the period for: Interest Paid, Net Interest Income Taxes Paid, Net Income taxes Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Supplemental disclosures of noncash investing and financing activities: Capital Lease Obligations Incurred Equipment acquired under finance leases ORGANIZATION AND OPERATIONS OF THE COMPANY Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] ORGANIZATION AND OPERATIONS OF THE COMPANY RECENT ACCOUNTING PRONOUNCEMENTS Accounting Standards Update and Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] RECENT ACCOUNTING PRONOUNCEMENTS REVENUES Revenue from Contract with Customer [Text Block] REVENUES SUPPLEMENTAL FINANCIAL STATEMENT DATA Supplemental Balance Sheet Disclosures [Text Block] SUPPLEMENTAL FINANCIAL STATEMENT DATA DERIVATIVE FINANCIAL INSTRUMENTS Derivative [Table] Derivative [Line Items] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] DERIVATIVE FINANCIAL INSTRUMENTS DEBT OBLIGATIONS Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt Obligations Debt Disclosure [Text Block] DEBT OBLIGATIONS LEASES Lessee, Lease, Description [Table] Lessee, Lease, Description [Line Items] Leases The entire disclosure of operating and finance leases. Lessee Operating And Finance Leases [Text Block] LEASES COMMITMENTS AND VARIABLE INTEREST ENTITIES Commitments Disclosure [Text Block] COMMITMENTS AND VARIABLE INTEREST ENTITIES SEGMENT AND GEOGRAPHICAL INFORMATION Schedule of Segment Reporting Information, by Segment [Table] Segment Reporting Information [Line Items] Segment Reporting Disclosure [Text Block] SEGMENT AND GEOGRAPHICAL INFORMATION INCOME TAXES Income Tax Disclosure [Text Block] INCOME TAXES EARNINGS PER SHARE (EPS) Earnings Per Share [Text Block] EARNINGS PER SHARE (EPS) CONTINGENCIES Legal Matters and Contingencies [Text Block] CONTINGENCIES SUBSEQUENT EVENTS Subsequent Event [Table] Subsequent Event [Line Items] SUBSEQUENT EVENTS Subsequent Events [Text Block] SUBSEQUENT EVENTS Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Fiscal Period, Policy [Policy Text Block] Fiscal Years Use of Estimates, Policy [Policy Text Block] Use of Estimates New Accounting Pronouncements, Policy [Policy Text Block] Accounting Pronouncements Recently Issued Tabular disclosure of contracts for revenue generating activities by type and by reporting segment. Schedule of By Type And Reportable Segment [Table Text Block] Schedule of contracts by reportable segments and type of contracts Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of reconciliation of cash and cash equivalents, and restricted cash Property, Plant and Equipment [Table Text Block] Schedule of equipment and leasehold improvements Schedule of Accrued Liabilities [Table Text Block] Schedule of accrued liabilities Schedule of Goodwill [Table Text Block] Schedule of changes in the carrying value of goodwill by reporting unit Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of gross amounts and accumulated amortization of acquired identifiable intangible assets with finite useful lives Schedule of Cash Flow Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Schedule of the fair values of outstanding derivatives designated as hedging instruments Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of accumulated other comprehensive income (loss) Schedule of Debt [Table Text Block] Schedule of debt obligations, excluding obligations under capital leases Lease, Cost [Table Text Block] Summary of the Lease Expense Tabular disclosure of impact of leases adoption on balance sheet information. Lessee Balance Sheet And Other Information Of Leases [Table Text Block] Summary of Lease Information Presented on the Condensed Consolidated Balance Sheet Tabular disclosure of other information and supplemental cash flow information related to leases. Lessee Other Information And Supplemental Cash Flow Information Of Leases [Table Text Block] Summary of Other Information and Supplemental Cash Flow Information Related to Finance and Operating Leases Lessee, Operating Lease, Liability, Maturity [Table Text Block] Summary of the Maturities of Operating Lease Liabilities Finance Lease, Liability, Maturity [Table Text Block] Summary of the Maturities of Finance Lease Liabilities Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of financial information with respect to the reportable segments Schedule of disaggregation of revenue Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of number of weighted-average common shares outstanding used to compute basic and diluted EPS Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract] Segment Information Number of Reportable Segments Number of reporting segments Entities [Table] Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Entity Information [Line Items] Entity Information Fiscal Period Duration Length of fiscal period Accounting Standards Update [Axis] Accounting Standards Update [Domain] Accounting Standards Update 2023-09 [Member] Accounting Standards Update 2023-09 Accounting Standards Update 2023-07 [Member] Accounting Standards Update 2023-07 Accounting Standards Update 2023-06 [Member] Accounting Standards Update 2023-06 Change in Accounting Principle, Accounting Standards Update, Adopted [true false] Change in Accounting Principle, Accounting Standards Update, Adopted Disaggregation of Revenue [Table] Income Statement Location [Axis] Income Statement Location [Domain] Cost of Sales [Member] Cost of Sales Disaggregation of Revenue [Line Items] Revenue The percentage of total revenue comprised of contracts which include separate phases or elements. Percent Of Total Revenue Comprised Of Contracts Which Include Separate Phases Or Elements Percent of revenue (as a percent) The amount of facilities costs allocated to direct costs of contract revenue. Allocation Of Facilities Costs To Direct Costs Of Contract Revenue Allocation of facilities costs to contract revenue Represents the amount of revenue of the entity in which it acts solely in the capacity of an agent. Revenue of the Entity as an Agent Revenue of the entity recorded in which it acts solely in the capacity of an agent Construction Contractor, Receivable, Retainage Retained accounts receivable Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents [Abstract] Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Restricted Cash Restricted cash Restricted Cash, Statement of Financial Position [Extensible Enumeration] Restricted Cash, Statement of Financial Position Property, Plant and Equipment [Table] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Furniture and Fixtures [Member] Furniture and Fixtures Long-lived depreciable assets used as a part of information systems and capitalized costs of purchased software applications. Computer Hardware and Software [Member] Computer Hardware and Software Leasehold Improvements [Member] Leasehold Improvements Vehicles that are used primarily for transporting people, large vehicles primarily used for transporting cargo and long-lived, depreciable assets used for the primary purpose of field work. Automobiles, Trucks and Field Equipment [Member] Automobiles Trucks and Field Equipment Property, Plant and Equipment [Line Items] Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization [Abstract] Equipment and Leasehold Improvements Property, Plant and Equipment, Gross Equipment and leasehold improvements Finance Lease, Right-of-Use Asset, before Accumulated Amortization Equipment under finance leases Equipment and leasehold improvements, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Equipment and leasehold improvements, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Accumulated depreciation and amortization Depreciation, Depletion and Amortization [Abstract] Amortization [Abstract] Amortization Expense Finance Lease, Right-of-Use Asset, Amortization Amortization expense Amortization of assets Accrued Liabilities, Current [Abstract] Accrued Liabilities The aggregate costs related to Accrued Subcontractor Cost and services. Accrued Subcontractor Costs Accrued subcontractor costs Accrued Bonuses, Current Accrued bonuses The carrying value as of the balance sheet of the withholding of payables of employees. Employee Withholdings Employee withholdings Represents the carrying value as of the balance sheet date of obligations incurred and payable for statutory payroll taxes incurred through that date and obligations and payables pertaining to compensation to employees. Compensation and Payroll Taxes Current Compensation and payroll taxes Accrued Rebates and Other, Current Accrued Rebates and Other, Current Rebate and other Accrued Accounting and Taxes, Current Accrued Accounting and Taxes, Current Accrued accounting costs and taxes Schedule of Goodwill [Table] Segments [Axis] Segments [Domain] Energy [Member] Energy [Member] Energy Engineering Consulting Services [Member] Engineering Consulting Services [Member] Engineering and Consulting Goodwill [Line Items] Goodwill [Roll Forward] Changes in carrying value of goodwill Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Order or Production Backlog [Member] Backlog Trade Names [Member] Tradename Noncompete Agreements [Member] Non-compete Agreements Developed Technology Rights [Member] Developed Technology Customer Relationships [Member] Customer Relationships Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets Finite-Lived Intangible Assets, Net [Abstract] Finite-Lived Intangible Assets Finite-Lived Intangible Assets, Gross Gross Amount Finite-Lived Intangible Assets, Accumulated Amortization Accumulated Amortization Finite-Lived Intangible Asset, Useful Life Amortization Period Derivative Instrument [Axis] Derivative Contract [Domain] Interest Rate Swap [Member] Interest Rate Swap Hedging Relationship [Axis] Hedging Relationship [Domain] Cash Flow Hedging [Member] Cash Flow Hedging Derivative, Inception Date Derivative, inception date Derivative, Notional Amount Notional amount Derivative, Fixed Interest Rate Fixed rate (as a percent) Derivative, Contract End Date Derivative, contract end date Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract] Derivative Financial Instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Other comprehensive income (loss), cash flow hedge, gain (loss), before reclassification and tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Other comprehensive income (loss), cash flow hedge, gain (loss), reclassification, before tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, before tax, total Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred Derivative instruments, gain (loss) reclassification from accumulated OCI to income, estimated net amount to be transferred Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer Derivative instruments, gain (loss) reclassification from accumulated OCI to income, estimate of time to transfer Derivative Assets (Liabilities), at Fair Value, Net, by Balance Sheet Classification [Abstract] Derivative Asset [Abstract] Derivative Assets Derivative Asset, Current Derivative asset, current Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] Derivative Asset, Current, Statement of Financial Position Derivative Liability [Abstract] Derivative Liabilities Derivative Liability, Noncurrent Derivative liability, noncurrent Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Derivative Liability, Noncurrent, Statement of Financial Position Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Gain (Loss) on Derivative Instruments Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Other comprehensive income (loss) before reclassifications Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Amounts reclassified from accumulated other comprehensive income (loss): Income tax benefit (expense) related to derivative instruments Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Notes Payable to Banks [Member] Notes Payable to Banks Notes Payable, Other Payables [Member] Notes Payable, Other Payables Debt Instrument [Axis] Debt Instrument, Name [Domain] Term Loan [Member] Term Loan [Member] Term Loan Other Debt [Member] Other Debt [Member] Other Debt Agreements Long-term Debt, Gross Total debt Debt Issuance Costs, Net Issuance costs and debt discounts Long-term Debt Subtotal Subtotal Long-term Debt, Current and Noncurrent [Abstract] Debt Obligations Long-term Debt, Current Maturities Less current portion of long-term debt Long-term Debt, Excluding Current Maturities Long-term debt portion Credit Agreement 2023 [Member] Credit Agreement 2023 [Member] New Credit Facilities Represents the percentage of composite interest rate of debt instrument. Debt Instrument Composite Interest Rate Composite interest rate (as a percent) Lessee, Operating Lease, Remaining Lease Term Operating lease, remaining lease term Lessee, Operating Lease, Existence of Option to Extend [true false] Operating lease, option to extend Lessee, Operating Lease, Renewal Term Operating lease, extension term Lessee, Operating Lease, Existence of Option to Terminate [true false] Operating lease, option to terminate Represents the term in which the operating lease can be terminated. Lessee Operating Lease, Terminate Term Operating lease, terminate term Residual Value of Leased Asset Residual value guarantee Lease, Cost [Abstract] Lease cost Operating Lease, Cost Operating lease cost Sublease Income Sublease Income Finance Lease, Interest Expense Interest on lease liabilities Lease, Cost Total net lease cost Assets and Liabilities, Lessee [Abstract] Operating leases: Operating Lease, Liability [Abstract] Operating leases, lease liabilities Operating Lease, Liability Total lease liabilities Total operating lease obligations Finance Lease, Right-of-Use Asset, after Accumulated Amortization [Abstract] Finance leases (included in equipment and leasehold improvements, net): Finance Lease, Right-of-Use Asset, Accumulated Amortization Accumulated depreciation Finance Lease, Right-of-Use Asset Total equipment and leasehold improvements, net Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Finance Lease, Right-of-Use Asset, Statement of Financial Position Finance Lease Liability [Abstract] Finance lease obligations Finance Lease, Liability Total finance lease obligations Total finance lease obligations Lessee Disclosure [Abstract] Leases Operating Lease, Weighted Average Remaining Lease Term Operating leases, weighted average remaining lease term Finance Lease, Weighted Average Remaining Lease Term Finance leases, weighted average remaining lease term Operating Lease, Weighted Average Discount Rate, Percent Operating leases, weighted average discount rate Finance Lease, Weighted Average Discount Rate, Percent Finance leases, weighted average discount rate Amount of operating lease expense. Excludes sublease income. Operating Lease Rent Expenses Rent expenses Cash Flow, Operating Activities, Lessee [Abstract] Cash paid for amounts included in the measurement of lease liabilities: Operating Lease, Payments Operating cash flow from operating leases Finance Lease, Interest Payment on Liability Operating cash flow from finance leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Right-of-use assets obtained in exchange for lease liabilities for operating leases Operating Lease Liabilities, Payments Due [Abstract] Operating Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year Remainder of 2024 Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months 2025 Lessee, Operating Lease, Liability, Payments, Due Year Two 2026 Lessee, Operating Lease, Liability, Payments, Due Year Three 2027 Lessee, Operating Lease, Liability, Payments, Due Year Four 2028 Amount of lessee's undiscounted obligation for lease payment for operating lease due after 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). Lessee Operating Lease Liability Payments Due After Year Four 2029 and thereafter Lessee, Operating Lease, Liability, Payments, Due Total lease payments Operating Lease Liabilities, Gross Difference, Amount [Abstract] Operating Lessee, Operating Lease, Liability, Undiscounted Excess Amount Less: Imputed interest Finance Lease Liabilities, Payments, Due [Abstract] Finance Finance Lease, Liability, Payments, Remainder of Fiscal Year Remainder of 2024 Finance Lease, Liability, Payments, Due Next Twelve Months 2025 Finance Lease, Liability, Payments, Due Year Two 2026 Finance Lease, Liability, Payments, Due Year Three 2027 Finance Lease, Liability, Payments, Due Year Four 2028 Amount of lessee's undiscounted obligation for lease payment for finance lease to be paid after 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). Finance Lease Liability Payments Due After Year Four 2029 and thereafter Finance Lease, Liability, Payments, Due Total lease payments Finance Lease Liabilities, Gross Difference, Amount [Abstract] Finance Finance Lease, Liability, Undiscounted Excess Amount Less: Imputed interest Defined Contribution Plan [Table] Retirement Plan Name [Axis] Retirement Plan Name [Domain] Qualified Cash or Deferred Arrangement [Member] Qualified Cash or Deferred Arrangement [Member] Qualified Cash or Deferred Arrangement Defined Contribution Plan [Member] Defined Contribution Plan [Member] Defined Contribution Plan Defined Contribution Plan Disclosure [Line Items] Employee Benefit Plans Defined Contribution Plan, Tax Status [Extensible Enumeration] Defined Contribution Plan, Tax Status Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Maximum employee contribution as a percentage of compensation under 401(k) Plan (as a percent) Period of services eligible to participate in defined contribution plan. Defined Contribution Plan, Employer Matching Contribution, Service Period Service period Defined Contribution Plan, Employer Matching Contribution, Age of Employees Defined Contribution Plan, Employer Matching Contribution, Age of Employees Attained age Defined Contribution Plan, Employer Matching Contribution, Percent of Match Defined contribution plan, employer matching contribution, percent of match (as a percent) Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Defined contribution plan, employer matching contribution, percent of employees' gross pay (as a percent) Defined Contribution Plan, Employer Matching Contribution, Maximum Amount Per Employee Defined Contribution Plan, Employer Matching Contribution, Maximum Amount Per Employee Maximum employer contribution per employee Defined Benefit Plan, Plan Assets, Contributions by Employer Employer matching contributions The percentage of costs reimbursed. Variable Interest Entity, Percentage Of Costs Reimbursed Percentage of costs reimbursed to WES by Genesys Represents the information pertaining to number of variable entities. Number of Variable Interest Entity Number of VIEs Consolidation Items [Axis] Consolidation Items [Domain] Operating Segments [Member] Operating Segments Corporate, Non-Segment [Member] Corporate, Non-Segment Segment Reconciliation [Abstract] Segment reconciliation Reconciliation of Assets from Segment to Consolidated [Table] Intersegment Eliminations [Member] Intersegment Eliminations Segment Reporting, Asset Reconciling Item [Line Items] Segment Reporting Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Domain] Time-and-Materials Contract [Member] Time-and-Materials Contract Unit-based Contract [Member] Unit-based Contract [Member] Unit-based Contract Fixed-Price Contract [Member] Fixed-Price Contract Customer [Axis] Customer [Domain] Commercial [Member] Commercial [Member] Commercial Government [Member] Government [Member] Government Public Utility [Member] Public Utility [Member] Utilities Geographical [Axis] Geographical [Domain] UNITED STATES Domestic Number of States in which Entity Operates Number of states in which entity operates Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Revenue Benchmark [Member] Revenue from Contract with Customer Benchmark [Member] Revenue from Contract with Customer Benchmark Revenue from Contract with Customer, Segment Benchmark [Member] Revenue from Contract with Customer, Segment Benchmark Concentration Risk Type [Axis] Concentration Risk Type [Domain] Customer Concentration Risk [Member] Customer Concentration Risk Geographic Concentration Risk [Member] Geographic Concentration Risk Top Ten Customers [Member] Top Ten Customers [Member] Top Ten Customers Los Angeles Department of Water and Power [Member] Los Angeles Department of Water and Power [Member] Los Angeles Department of Water and Power Dormitory Authority-State New York [Member] Dormitory Authority-State New York [Member] Dormitory Authority-State New York CALIFORNIA California NEW YORK New York Concentration Risk [Line Items] Concentration Risk Concentration Risk, Percentage Concentration risk (as a percent) Valuation Allowance [Table] Valuation Allowance [Line Items] Valuation Allowance Deferred Tax Assets, Valuation Allowance Valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Increase (decrease) in valuation allowance Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract] Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Liability for uncertain tax positions Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Net income (loss) Net Income (Loss) Available to Common Stockholders, Basic Net income (loss) - basic Net Income (Loss) Available to Common Stockholders, Diluted Net income (loss) - diluted Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Effect of dilutive stock options and restricted stock awards (in shares) Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Share-Based Payment Arrangement [Member] Share-Based Payment Arrangement Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Earnings Per Share, Diluted, Other Disclosure [Abstract] Antidilutive securities Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive securities excluded from computation of earnings per share (in shares)