Business Acquisition [Axis] Business Acquisition [Axis] Additions - charged to expense Accounts Receivable, Credit Loss Expense (Reversal) Related Party Transactions [Abstract] Related Party Transactions [Abstract] Deferred income taxes Deferred Income Tax Assets, Net Disposal Solid Waste Operations Disposal [Member] Solid Waste Operations Disposal [Member] Principal amount of debt Aggregate principal amount outstanding Long-Term Debt, Gross Multiemployer pension plan withdrawal obligation, undiscounted Multiemployer Plans, Withdrawal Obligation, Undiscounted Multiemployer Plans, Withdrawal Obligation, Undiscounted Total State and Local Income Tax Expense (Benefit), Continuing Operations Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Debt Instrument [Axis] Debt Instrument [Axis] Lease liability balance Finance leases maturing through December 2107; bearing interest at a weighted average of 3.6% Finance Lease, Liability Property, plant and equipment, gross Property, Plant and Equipment, Gross Fair value of debt Debt Instrument, Fair Value Disclosure Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Fiscal year ending December 31, 2026 Finance Lease, Liability, to be Paid, Year Four Depreciation expense Depreciation Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Net deferred tax asset Net deferred tax asset Deferred Tax Assets, Net Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Weighted-average discount rate - operating leases Operating Lease, Weighted Average Discount Rate, Percent Other current assets Other Current Assets [Member] Solid waste operations Solid Waste Operations [Member] Solid waste operations. 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Document Type Document Type Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Property plant and equipment, estimated useful life Property, Plant and Equipment, Useful Life Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Forfeited or expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Capital Leased Assets [Line Items] Capital Leased Assets [Line Items] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Thereafter Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, after Year Five Outstanding, beginning balance (in dollars per share) Outstanding, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Finance Leases Finance Lease, Liability, to be Paid [Abstract] General business credit carryforward Deferred Tax Assets, Tax Credit Carryforwards, General Business Deferred income taxes Deferred Income Tax Expense (Benefit) Market-based Performance Stock Units Market-based Performance Stock Units [Member] Market-based Performance Stock Units [Member] OTHER ACCRUED LIABILITIES Other Liabilities Disclosure [Text Block] Unrealized gain (loss) resulting from changes in fair value of derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Non-deductible officer compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Officer Compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Officer Compensation Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 ("FAME Bonds 2005R-3") due January 2025 - fixed rate interest period through 2025; bearing interest at 5.25% Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 (FAME Bonds 2005R-3) [Member] Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 (FAME Bonds 2005R-3) [Member] Multiemployer Plans [Line Items] Multiemployer Plan [Line Items] Interest income Interest Income, Other Fair value of assets acquired and liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Debt Disclosure [Abstract] Debt Disclosure [Abstract] Diluted earnings per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Contributions by employer Defined Benefit Plan, Plan Assets, Contributions by Employer Unsecured Debt Unsecured Debt [Member] Income tax benefit related to items in other comprehensive income (loss) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Line of Credit Line of Credit [Member] Variable lease cost Variable Lease, Cost Gross receivables from contracts Contract with Customer, Asset, before Allowance for Credit Loss, Current STOCKHOLDERS' EQUITY: Stockholders' Equity Attributable to Parent [Abstract] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Southbridge Landfill Southbridge Landfill [Member] Southbridge landfill. Weighted average percentage rate paid Derivative, Average Fixed Interest Rate Other long-term liabilities Other Noncurrent Liabilities [Member] Aggregate intrinsic value, unvested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Aggregate Intrinsic Value Related Party Transaction [Line Items] Related Party Transaction [Line Items] Schedule of Benefit for Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Unrecognized stock-based compensation expense, weighted average period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Weighted average remaining contractual term, exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Components of Intangible Assets Schedule of Finite-Lived Intangible Assets [Table Text Block] Derivative Contract [Domain] Derivative Contract [Domain] Transfer Transfer [Member] Transfer [Member] Entity Registrant Name Entity Registrant Name Buildings and improvements Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Buildings Risk free interest rate Accrual for Environmental Loss Contingencies, Discount Rate Expected dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Weighted average grant price, unvested, ending balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested, Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested, Weighted Average Grant Date Fair Value EMPLOYEE BENEFIT PLANS Retirement Benefits [Text Block] Collection Solid Waste Operations Collection [Member] Solid Waste Operations Collection [Member] Leases [Abstract] Leases [Abstract] Term Loan A Facility ("Term Loan Facility") due December 2026; bore interest at LIBOR plus 1.125% Amended Term A Facility Due December 2026 (Term Loan Facility) [Member] Amended Term A Facility Due December 2026 (Term Loan Facility) Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Minimum Minimum [Member] Site Contingency [Table] Site Contingency [Table] Entity Emerging Growth Company Entity Emerging Growth Company Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] Trading Symbol Trading Symbol Entity File Number Entity File Number Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Fiscal year ending December 31, 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2013 ("Vermont Bonds 2013") due April 2036 - fixed rate interest period through 2028; bearing interest at 4.625% Long Term Revenue Bond Series 2013, Due 2036 [Member] Long Term Revenue Bond Series Two Thousand Thirteen Due Two Thousand Thirty Six [Member] Accrued interest Interest Payable, Current Potential exposure per individual event Liability for Claims and Claims Adjustment Expense, Workers' Compensation, Potential Exposure Liability for Claims and Claims Adjustment Expense, Workers' Compensation, Potential Exposure Subsequent Events Subsequent Events, Policy [Policy Text Block] Title of Individual [Axis] Title of Individual [Axis] Derivatives and Hedging Derivatives, Policy [Policy Text Block] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Legal settlement charge Litigation Settlement Charge Litigation Settlement Charge Management's Estimates and Assumptions Use of Estimates, Policy [Policy Text Block] Complete Disposal Company, Inc Complete Disposal Company, Inc [Member] Complete Disposal Company, Inc [Member] BUSINESS COMBINATIONS Business Combination Disclosure [Text Block] Other information: Lease, Other Information [Abstract] Lease, Other Information [Abstract] Accounts payable Increase (Decrease) in Accounts Payable Revenues percentage Concentration Risk, Percentage Holdbacks to sellers and contingent consideration Business Combination, Consideration Transferred, Liabilities Incurred Net income Business Acquisition, Pro Forma Net Income (Loss) INCOME TAXES Income Tax Disclosure [Text Block] Revenue from related party Revenue from Related Parties Weighted average interest rate Debt, Weighted Average Interest Rate Leases monthly payments Debt Instrument, Periodic Payment Aggregate intrinsic value, outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Credit Facility [Domain] Credit Facility [Domain] Notes payable maturing through August 2024; 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Accumulated deficit Retained Earnings (Accumulated Deficit) Revolving Credit Facility ("Revolving Credit Facility") due December 2026; bore interest at LIBOR plus 1.125% Amended Revolving Credit Facility Due December 2026 [Member] Amended Revolving Credit Facility Due December 2026 Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Recurring Fair Value, Recurring [Member] Next matching contribution Defined Contribution Plan, Second Matching Contribution [Member] Defined Contribution Plan, Second Matching Contribution Exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Schedule of Unaudited Pro forma Combined Information Business Acquisition, Pro Forma Information [Table Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Financing cash flows for finance leases Finance Lease, Principal Payments Non-current assets acquired through long-term financing obligations Fair Value of Assets Acquired Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] ACCOUNTING CHANGES Accounting Standards Update and Change in Accounting Principle [Text Block] Amounts reclassified from accumulated other comprehensive loss Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Capital expenditures Payments to Acquire Productive Assets Operating lease right-of-use assets expense Operating Lease, Expense Stock awards Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost Document Information [Table] Document Information [Table] Common stock, outstanding shares Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Goodwill Excess purchase price to be allocated to goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Inventory Inventory, Gross Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Axis] Provision (benefit) for income taxes Provision (benefit) for income taxes Income Tax Expense (Benefit) Valuation allowance Less: valuation allowance Deferred Tax Assets, Valuation Allowance Deferred income taxes Deferred Income Tax Liabilities, Net Hedging Relationship [Axis] Hedging Relationship [Axis] Entity Public Float Entity Public Float Balance Sheet Location [Domain] Balance Sheet Location [Domain] Cost of operations Cost of Goods and Services Sold Beginning balance Ending balance Accrued costs associated with post-closure obligations Asset Retirement Obligation Interest rate swaps Derivative Liability Cash flow hedge derivatives, liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2022A-1 ("Vermont Bonds 2022A-1") due June 2052 - fixed rate interest period through 2027; bearing interest at 5.00% Long Term Revenue Bond Series 2022A-1, Due 2052 [Member] Long Term Revenue Bond Series 2022A-1, Due 2052 Common stock Common Stock, Value, Issued Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Contingent Liabilities Commitments and Contingencies, Policy [Policy Text Block] First matching contribution Defined Contribution Plan, First Matching Contribution [Member] Defined Contribution Plan, First Matching Contribution Schedule of Cash Flow Hedges Related to Derivative Instruments Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Number of leases Number Of Leases Number of related party capital lease agreements entered into. 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trade, allowance for credit losses Balance at beginning of period Balance at end of period Accounts Receivable, Allowance for Credit Loss, Current Self insurance reserves Self Insurance Reserve Common stock, authorized shares Common Stock, Shares Authorized Other accrued liabilities Other Accrued Liabilities [Member] Other Accrued Liabilities [Member] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Maximum Maximum [Member] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Designated as hedging instrument Designated as Hedging Instrument [Member] FINAL CAPPING, CLOSURE AND POST-CLOSURE COSTS Asset Retirement Obligation Disclosure [Text Block] Business Acquisition [Line Items] Business Acquisition [Line Items] Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table] Schedule of Employee Stock Ownership Plan (ESOP) Disclosures [Table] Restricted assets Restricted investment securities - landfill closure Restricted Cash and Investments, Noncurrent Measurement Frequency [Domain] Measurement Frequency [Domain] Line of Credit Facility [Table] Line of Credit Facility [Table] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Schedule of Multiemployer Plans [Table] Multiemployer Plan [Table] Unusual or Infrequent Items, or Both [Abstract] Unusual or Infrequent Items, or Both [Abstract] Income benefit associated with stock-based compensation expense Share-Based Payment Arrangement, Expense, Tax Benefit Accounts receivable Increase (Decrease) in Accounts Receivable Title of 12(b) Security Title of 12(b) Security Fiscal year ending December 31, 2023 Accrual for Environmental Loss Contingency, Undiscounted, to be Paid, Year One SEGMENT REPORTING Segment Reporting Disclosure [Text Block] Other income Other Nonoperating Income Net deferred tax liability Deferred Tax Liabilities, Net LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Fair Value Estimate of Fair Value Measurement [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Forfeited or expired (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Finance lease right-of-use-assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finance Lease, Right-of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finance Lease, Right-of-Use Asset Customer Solutions Customer Solutions [Member] Customer Solutions Operating lease right-of-use assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Right-of-Use Asset Accounts payable Accounts Payable, Current Income Tax Authority [Axis] Income Tax Authority [Axis] Number of businesses acquired Number of Businesses Acquired Accumulated depreciation and amortization Less: accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Proceeds from the public offering of Class A Common Stock Proceeds from Issuance of Common Stock Weighted average common shares outstanding Basic weighted average shares outstanding Weighted Average Number of Shares Outstanding, Basic Percentage of fair value in excess of carrying amount Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Loss contingency accrual Loss Contingency Accrual Notional amount Derivative, Notional Amount Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Components of Debt Schedule of Debt [Table Text Block] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Employer matching contribution, percent of match Defined Contribution Plan, Employer Matching Contribution, Percent of Match Variable Rate Component One Variable Rate Component One [Member] Variable Rate Component One Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Lease Accounting Lessee, Leases [Policy Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Operating income Business Acquisitions Pro Forma Operating Income Loss The pro forma operating income for the period as if the business combination or combinations had been completed at the beginning of the period. 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Value, Acquisitions Letter of Credit Letter of Credit [Member] Furniture and Fixtures Furniture and Fixtures [Member] Operating lease liabilities, less current portion Operating Lease, Liability, Noncurrent Accretion expense and obligations incurred Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses Employer contributions Defined Contribution Plan, Cost Statistical Measurement [Axis] Statistical Measurement [Axis] Payments of contingent consideration Payment for Contingent Consideration Liability, Financing Activities Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Grantee Status [Domain] Grantee Status [Domain] Obligations settled Asset Retirement Obligation, Liabilities Settled Accounts receivable, net of allowance for credit losses of $3,016 and $3,276, respectively Accounts Receivable, after Allowance for Credit Loss, Current Landfill post-closure cost Asset 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Federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Maximum exposure per individual event Liability for Claims and Claims Adjustment Expense, Workers' Compensation, Maximum Exposure Maximum exposure per individual event. Stock issued under stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Eastern Eastern Region [Member] Eastern region. Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Landfill closure project charge (credit) Landfill Closure Project (Credit) Charge (Credit) charge associated with changes in the estimated costs to execute the closure plan. Fiscal year ending December 31, 2024 Finance Lease, Liability, to be Paid, Year Two Liabilities: Liabilities [Abstract] Basis of Accounting Basis of Accounting, Policy [Policy Text Block] Variable Rate Component [Axis] Variable Rate Component [Axis] Variable Rate Component Estimated Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Title of Individual [Domain] Title of Individual [Domain] Additional issuance if performance targets met (in shares) Additional Shares Issued Maximum Attainment Level Additional shares of Class A Common Stock potentially issuable if maximum attainment levels are met. Public Stock Offering Public Stock Offering [Member] Public Stock Offering [Member] Forfeited or canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Balance Sheet Location [Axis] Balance Sheet Location [Axis] Sale of stock, price per share (in dollars per share) Sale of Stock, Price Per Share Other environmental remediation sites Environmental Remediation Contingency, Other [Member] Environmental Remediation Contingency, Other Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Summary of Revenue Attributable to Services Provided by Company Revenue from External Customers by Products and Services [Table Text Block] Accumulated other comprehensive income (loss), net of tax Accumulated other comprehensive income (loss), net of tax Accumulated Other Comprehensive Income (Loss), Net of Tax Western Western Region [Member] Western region. Class A Common Stock Common Class A [Member] Total current assets Assets, Current Income tax payments (refunds), net Income Taxes Paid, Net Entity Small Business Entity Small Business Measurement Basis [Axis] Measurement Basis [Axis] State State and Local Income Tax Expense (Benefit), Continuing Operations [Abstract] Other Commitments [Table] Other Commitments [Table] Additional shares issued Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Intangible assets, net Intangible assets, net Finite-Lived Intangible Assets, Net Self-Insurance Liabilities and Related Costs Unpaid Policy Claims and Claims Adjustment Expense, Policy [Policy Text Block] Business Finance Authority of the State of New Hampshire Solid Waste Disposal Revenue Bonds Series 2013 ("New Hampshire Bonds") due April 2029 - fixed rate interest period through 2029; bearing interest at 2.95% Revenue Bond Series Two Thousand Thirteen Due Two Thousand Twenty Nine [Member] Revenue Bond Series Two Thousand Thirteen Due Two Thousand Twenty Nine [Member] Changes to Accrued Capping, Closure and Post-Closure Liabilities Schedule of Change in Asset Retirement Obligation [Table Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Stock Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Machinery and Equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Equipment Aggregate intrinsic value, outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Defined Contribution Plan, Matching Contribution Hierarchy [Domain] Defined Contribution Plan, Matching Contribution Hierarchy [Domain] Defined Contribution Plan, Matching Contribution Hierarchy Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Less discount, net Accrual for Environmental Loss Contingencies, Discount Proceeds from sale of cost method investment Proceeds from Sale, Maturity and Collection of Investments Total Federal Income Tax Expense (Benefit), Continuing Operations Total operating expenses Costs and Expenses Closure and post closure costs Closure And Post Closure Costs [Member] Closure and Post-closure costs. Payables and Accruals [Abstract] Deferred tax assets: Deferred Tax Assets, Tax Deferred Expense [Abstract] Debt Instrument [Line Items] Debt Instrument [Line Items] Business Combination and Asset Acquisition [Abstract] Issuances of Class A common stock (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Payments of debt issuance costs Payments of Debt Issuance Costs Unvested, ending balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested, Number Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Unvested, Number Lease liability balance Operating Lease, Liability Stock-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Total lease payments Finance Lease, Liability, to be Paid Schedule of Estimated Minimum Future Finance Lease Obligations Finance Lease, Liability, Fiscal Year Maturity [Table Text Block] Purchase Price: Payments to Acquire Businesses, Net of Cash Acquired [Abstract] Fiscal year ending December 31, 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Two Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Audit Information [Abstract] Audit Information [Abstract] Audit Information Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Accrued expenses and reserves Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Sale of stock, net proceeds Sale of Stock, Consideration Received on Transaction Beginning balance Ending balance Liability balance Accrual for Environmental Loss Contingencies Impairment of investments Other than Temporary Impairment Losses, Investments Fiscal year ending December 31, 2026 Long-Term Debt, Maturity, Year Four Hedging Relationship [Domain] Hedging Relationship [Domain] Hedging Designation [Axis] Hedging Designation [Axis] Auditor location Auditor Location Unvested restricted stock (in shares) Weighted Average Number of Shares, Restricted Stock Entity Filer Category Entity Filer Category Current Current Federal Tax Expense (Benefit) Stock-based compensation expense Share-Based Payment Arrangement, Expense COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Security Exchange Name Security Exchange Name Outstanding, beginning balance (in dollars per share) Outstanding, ending balance (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Financing lease liabilities, less current portion Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finance Lease, Liability, Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finance Lease, Liability, Noncurrent Letters of credit Outstanding irrevocable letters of credit totaling Letters of Credit Outstanding, Amount Other long-term liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Processing Processing Services [Member] Processing Services Revenues Total revenues Revenue from Contract with Customer, Excluding Assessed Tax Interest rate, annual increase upon payment default Debt Instrument, Interest Rate, Annual Increase, Upon Payment Default Debt Instrument, Interest Rate, Annual Increase, Upon Payment Default Cover [Abstract] Capitalized interest Interest Costs Capitalized Entity Voluntary Filers Entity Voluntary Filers Goodwill impairment incurred Goodwill, Impairment Loss Weighted-average discount rate - finance leases Finance Lease, Weighted Average Discount Rate, Percent REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Accumulated other comprehensive income (loss), tax AOCI Tax, Attributable to Parent Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Total liabilities and stockholders' equity Liabilities and Equity New Hampshire Bonds New Hampshire Bonds [Member] New Hampshire Bonds [Member] Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Amortization of debt issuance costs Amortization of Debt Issuance Costs Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Reconciliation of Expected Aggregate Non-inflated, Undiscounted Environmental Remediation Liability to Amount Recognized in Statement of Financial Position Schedule of Reconciliation of Expected Undiscounted Liability To Actual Liability [Table Text Block] Reconciliation of the environmental remediation liability to the undiscounted environmental remediation liability as of the latest balance sheet date. Total deferred tax assets Deferred Tax Assets, Gross Rolling stock Rolling Stock [Member] Rolling Stock [Member] Fixed Rate Bonds Fixed Rate Bonds [Member] Fixed rate bonds. Less: interest expense Lessee, Operating Lease, Liability, Undiscounted Excess Amount Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Diluted earnings per common share (in dollars per share) Earnings Per Share, Diluted Sale of Stock [Domain] Sale of Stock [Domain] Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Options vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Consolidation Items [Axis] Consolidation Items [Axis] Processing Resource Solutions Operations, Processing [Member] Resource Solutions Operations, Processing Contract settlement charge Gain (Loss) on Contract Termination Fiscal year ending December 31, 2024 Lessee, Operating Lease, Liability, to be Paid, Year Two Other current assets Other Assets, Current Total deferred tax assets after valuation allowance Deferred Tax Assets, Net of Valuation Allowance Unrecognized tax benefits Unrecognized Tax Benefits Amortization of intangibles Deferred Tax Liabilities, Intangible Assets Cumulative effect of new accounting principle Cumulative Effect, Period of Adoption, Adjustment [Member] Summary of Changes to Allowance for Credit Losses Accounts Receivable, Allowance for Credit Loss [Table Text Block] Amortization expense Amortization Cash flow hedge derivatives, assets Derivative Asset, Subject to Master Netting Arrangement, before Offset Schedule of Estimated Minimum Future Operating Lease Obligations Lessee, Operating Lease, Liability, Maturity [Table Text Block] Entity Address, Address Line One Entity Address, Address Line One Tax effect related to items of other comprehensive income (loss) Other Comprehensive Income (Loss), Tax Product and Service [Axis] Product and Service [Axis] Class of Stock [Domain] Class of Stock [Domain] Other non-current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Current accrued capping, closure and post-closure costs Accrued Capping, Closure, Post-closure and Environmental Costs Interest expense Total interest expense Interest Expense Trade Names Trade Names [Member] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Schedule of Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Machinery and equipment Machinery and Equipment [Member] Schedule of Capital Leased Assets [Table] Schedule of Capital Leased Assets [Table] Other non-current assets Other Noncurrent Assets [Member] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Total deferred tax liabilities Deferred Tax Liabilities, Gross Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Covenants Not-to-Compete Noncompete Agreements [Member] Property, plant and equipment and finance lease right-of-use assets, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Debt instrument, interest rate during period Debt Instrument, Interest Rate During Period Accrued capital expenditures Accrued Capital Expenditures, Current Accrued Capital Expenditures, Current Non-Employee Director Non Employee Director [Member] Non Employee Director [Member] Asset Impairments Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block] Fiscal year ending December 31, 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Five Land Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Land Measurement Frequency [Axis] Measurement Frequency [Axis] Weighted Average Grant Price Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Schedule of Environmental Remedial Liability Schedule of Environmental Loss Contingencies by Site [Table Text Block] Other accrued liabilities Total Other Accrued Liabilities, Current General and administration General and Administrative Expense Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Other Commitments [Line Items] Other Commitments [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Tax at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Less: interest expense Finance Lease, Liability, Undiscounted Excess Amount Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Inactive waste disposal site Inactive Waste Disposal Site [Member] Inactive Waste Disposal Site Accrued capping, closure and post-closure costs, less current portion Accrued Capping, Closure, Post-closure and Environmental Costs, Noncurrent Obligations settled Accrual for Environmental Loss Contingencies, Payments Derivative Asset, Statement Of Financial Position Extensible Enumeration, Not Disclosed Flag Derivative Asset, Statement Of Financial Position Extensible Enumeration, Not Disclosed Flag Derivative Asset, Statement Of Financial Position Extensible Enumeration, Not Disclosed Flag