Current assets Business Combination, Recognized Asset Acquired, Asset, Current Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization OTHER ITEMS AND CHARGES Unusual or Infrequent Items, or Both, Disclosure [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Proceeds from debt borrowings Proceeds from Issuance of Long-Term Debt and Capital Securities, Net Other current assets Other Current Assets [Member] Disposal Solid Waste Operations, Disposal [Member] Solid Waste Operations, Disposal Current liabilities Business Combination, Recognized Liability Assumed, Liability, Current Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Floor interest rate Derivative, Floor Interest Rate Additional Paid-In Capital Additional Paid-in Capital [Member] Interest rate swaps Interest Rate Swap [Member] Other non-current assets Other Noncurrent Assets [Member] Revenue recognized for performance obligation satisfied in previous period Contract with Customer, Performance Obligation Satisfied in Previous Period Tabular List, Table Tabular List [Table Text Block] Basic earnings per share attributable to common stockholders: Earnings Per Share, Basic [Abstract] Accounting Standards Adopted and Pending Adoption New Accounting Pronouncements, Policy [Policy Text Block] Accounts payable Increase (Decrease) in Accounts Payable SOFR Secured Overnight Financing Rate (SOFR) [Member] Interest expense, net Interest Income (Expense), Nonoperating Holdbacks, contingent consideration and other Business Combination, Consideration Transferred, Liabilities Incurred Goodwill [Line Items] Goodwill [Line Items] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Measurement Basis [Axis] Measurement Basis [Axis] Basic earnings per share (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Inventory Inventory, Gross Obligations settled Asset Retirement Obligation, Liabilities Settled REVENUE RECOGNITION Revenue from Contract with Customer [Text Block] Purchase Price: Business Combination, Consideration Transferred [Abstract] 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] Revolving credit facility (“Revolving Credit Facility”) due September 2029; bearing interest at term secured overnight financing rate (“Term SOFR”) plus 1.550% Revolving Credit Facility, Due September 2029 [Member] Revolving Credit Facility, Due September 2029 Transportation Transportation [Member] Transportation [Member] Revision in estimates Asset Retirement Obligation, Revision of Estimate Adjustment to Compensation, Amount Adjustment to Compensation Amount Solid waste Solid Waste Operations [Member] Solid waste operations. Southbridge Landfill closure charge Landfill Closure (Credit) Charge, Net The aggregate (recovery) charge associated with the closure of a landfill, which is comprised of an asset impairment charge, a development project charge write-off, an environmental remediation charge, a legal settlement charge, related legal and transaction costs and a recovery on insurance settlement. A positive number is an expense and a negative number is a gain. Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Landfill gas-to-energy Landfill - Gas To Energy [Member] Landfill - Gas To Energy [Member] Stock Options Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Loss contingency accrual threshold Loss Contingency Accrual Threshold Loss Contingency Accrual Threshold Total stockholders' equity Beginning balance Ending balance Equity, Attributable to Parent Measurement Frequency [Axis] Measurement Frequency [Axis] Interest rate, annual increase upon other event of default Debt Instrument, Interest Rate, Annual Increase, Upon Other Event Of Default Debt Instrument, Interest Rate, Annual Increase, Upon Other Event Of Default Insider Trading Policies and Procedures [Line Items] Stock-based compensation expense Share-Based Payment Arrangement, Expense Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-2 (“FAME Bonds 2015R-2”) due August 2035 - fixed rate interest period bore interest at 4.375% through July 2025 Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-2 [Member] Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-2 [Member] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Goodwill and Intangible Assets Disclosure [Abstract] Environmental Loss Contingency, Current, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Environmental Loss Contingency, Current, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Environmental Loss Contingency, Current, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Issuance of Class A common stock - stock issuance costs (in shares) Stock Issued During Period, Shares, New Issues CURRENT ASSETS: Assets, Current [Abstract] Total liabilities and stockholders' equity Liabilities and Equity Recurring Fair Value, Recurring [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Stock Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Cover [Abstract] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] 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 bearing interest at 5.000% through May 2027 Vermont Bonds, Series 2022A-1 Due 2052 [Member] Vermont Bonds, Series 2022A-1 Due 2052 Maximum Maximum [Member] Exercisable at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Useful life of finite lived intangible assets Finite-Lived Intangible Asset, Useful Life Capital expenditures Segment, Expenditure, Addition to Long-Lived Assets Intangible assets, net Intangible assets, net Finite-Lived Intangible Assets, Net 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] Schedule of Restricted Stock, Restricted Stock Unit and Performance Stock Unit Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Fair value of stock awards vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Liabilities: Liabilities [Abstract] BUSINESS COMBINATIONS Business Combination [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Restricted Stock Awards, Restricted Stock Units And Performance Stock Units Restricted Stock Restricted Stock Units And Performance Stock Units [Member] Restricted stock, restricted stock units and performance stock units. Debt And Derivatives Disclosure [Abstract] Debt And Derivatives Disclosure [Abstract] Other long-term liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Proceeds from sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Statement of Stockholders' Equity [Abstract] Operating Segments Operating Segments [Member] Operating lease liabilities, less current portion Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Statement of Cash Flows [Abstract] Company Selected Measure Amount Company Selected Measure Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014 (“New York Bonds 2014R-1”) due December 2044 - fixed rate interest period bearing interest at 2.875% through December 2029 Revenue Bonds Series Two Thousand Fourteen Due Two Thousand Forty Four [Member] Revenue Bonds Series Two Thousand Fourteen Due Two Thousand Forty Four [Member] Accrued Final Capping, Closure and Post Closure Asset Retirement Obligation [Policy Text Block] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Transfer station Transfer Station [Member] Transfer [Member] Name Measure Name Net income Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Letter of Credit Letter of Credit [Member] Secured Debt Secured Debt Secured Debt [Member] Current operating lease liabilities Operating Lease, Liability, Current Other comprehensive loss, before tax Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent Deferred income taxes Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Unsecured Debt Unsecured Debt [Member] Award Timing Method Award Timing Method [Text Block] Litigation Case [Domain] Litigation Case [Domain] Award Type [Axis] Award Type [Axis] Hedging Relationship [Domain] Hedging Relationship [Domain] Schedule of Unaudited Pro forma Combined Information Business Combination, Pro Forma Information [Table Text Block] Total assets Total assets Assets Cash Flows from Investing Activities: Cash Provided by (Used in) Investing Activity, Continuing Operation [Abstract] Fiscal year ending December 31, 2026 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol Class A Common Stock Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Performance Stock Unit Performance Stock Unit [Member] Performance stock unit. Thereafter Finite-Lived Intangible Asset, Expected Amortization, after Year Four Finite-Lived Intangible Asset, Expected Amortization, after Year Four Issuance of Class A common stock (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture 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] Weighted-average discount rate - finance leases Finance Lease, Weighted Average Discount Rate, Percent New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2020R-2 (“New York Bonds 2020R-2”) due September 2050 - fixed rate interest period bearing interest at 5.125% through September 2030 Revenue Bonds Series 2020R-2 due September 2050 [Member] Revenue Bonds Series 2020R-2 due September 2050 New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014R-2 (“New York Bonds 2014R-2”) due December 2044 - fixed rate interest period bearing interest at 3.125% through May 2026 Revenue Bond Series Two Thousand Fourteen R Two Due Two Thousand Forty Four [Member] Revenue Bond Series Two Thousand Fourteen R Two Due Two Thousand Forty Four [Member] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Restricted Stock Unit Restricted Stock Units (RSUs) [Member] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Market-based Performance Stock Units Market-based Performance Stock Units [Member] Market-based Performance Stock Units [Member] Total consideration Business Combination, Consideration Transferred Term loan A facility (“Term Loan Facility”) payable quarterly beginning in the fiscal year ended December 31, 2027 with balance due September 2029; bearing interest at 5.713% as of September 30, 2025 Term Loan A Facility, Due September 2029 [Member] Term Loan A Facility, Due September 2029 Fiscal year ending December 31, 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Four Entity Emerging Growth Company Entity Emerging Growth Company Unusual or Infrequent Items, or Both [Abstract] Additions to intangible assets Payments to Acquire Intangible Assets Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Right-of-use assets obtained in exchange for operating lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Accrual for Environmental Loss Contingencies [Roll Forward] Accrual for Environmental Loss Contingencies [Roll Forward] Beginning balance, outstanding (in shares) Ending balance, outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number 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] Settlements due from sellers Business Combination, Consideration Transferred, Adjustment, Settlements Business Combination, Consideration Transferred, Adjustment, Settlements Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Less—unamortized debt issuance costs Debt Issuance Costs, Net Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Business Combination [Domain] Business Combination [Domain] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 (“FAME Bonds 2005R-3”) - fixed rate interest period bore interest at 5.25% through paydown in January 2025 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] Plan Name [Axis] Plan Name [Axis] Environmental Loss Contingency, Noncurrent, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Environmental Loss Contingency, Noncurrent, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Environmental Loss Contingency, Noncurrent, Statement Of Financial Position, Extensible Enumeration, Not Disclosed Flag Document Information [Table] Document Information [Table] PEO PEO [Member] Interest accretion on landfill and environmental remediation liabilities Accretion Expense, Including Asset Retirement Obligations Vermont Economic Development Authority Solid Waste Disposal Revenue Bonds Series 2022A-2 (“Vermont Bonds 2022A-2”) due June 2052 - fixed rate interest period bearing interest at 4.375% through May 2032 Vermont Bonds 2022A-1 Vermont Bonds, Series 2022A-2, Due 2052 [Member] Vermont Bonds, Series 2022A-2, Due 2052 Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Supplemental Disclosure of Non-Cash Activities: Noncash Investing and Financing Items [Abstract] Changes in assets and liabilities, net of effects of acquisitions and divestitures: 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] Schedule of Intangible Amortization Expense Estimated Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated Deficit Retained Earnings [Member] Landfill Landfill Revenue [Member] Landfill Revenue [Member] Restricted Stock, Restricted Stock Units, and Performance Stock Units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Cash, cash equivalents and restricted cash, beginning of period Cash, cash equivalents and restricted cash, end of period Cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Southbridge Landfill closure charge Southbridge Landfill Closure Charge The aggregate (recovery) charge recognized in the period associated with the unplanned closure of the Southbridge Landfill. (Recovery) charges are expected to be incurred through completion of the closure process Interest rate swaps Derivative Asset Provision for income taxes Provision for income taxes Income Tax Expense (Benefit) Other comprehensive loss before reclassifications OCI, before Reclassifications, before Tax, Attributable to Parent Variable rate margin Debt Instrument, Basis Spread on Variable Rate Class B Common Stock Common Class B [Member] Principal payments on debt Repayment of Long-Term Debt, Long-Term Lease Obligation, and Capital Security Document Information [Line Items] Document Information [Line Items] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Designated as Hedging Instrument Designated as Hedging Instrument [Member] Subsegments [Axis] Subsegments [Axis] Product and Service [Domain] Product and Service [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Hedging Relationship [Axis] Hedging Relationship [Axis] Cash, cash equivalents and restricted cash Cash, Cash Equivalents, and Short-Term Investments Asset Retirement Obligation Disclosure [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Business Combination [Table] Business Combination [Table] Machinery, equipment and other Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Equipment Notional amount Derivative, Notional Amount Obligations incurred Asset Retirement Obligation, Liabilities Incurred Organization, Consolidation and Presentation of Financial Statements [Abstract] Landfill operating lease contract expenditures Increase (Decrease) in Landfill Operating Lease Contract Expenditures Increase (decrease) in landfill operating lease liabilities associated with landfill operating lease contract payments Letters of credit sublimit Letters of Credit, Sublimit Sublimit to the amount of letters of credit allowed under credit agreement. Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Acquisitions Goodwill, Acquired During Period Accumulated depreciation and amortization Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization City Area Code City Area Code Acquisitions, net of cash acquired Cash used in acquisitions, net of cash acquired of $— and $6,547, respectively 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] Outstanding, beginning of period (in shares) Outstanding, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Commitments and Contingencies Disclosure [Abstract] Amended 2016 Plan Amended 2016 Plan [Member] Amended 2016 Plan Collection Solid Waste Operations, Collection [Member] Solid Waste Operations, Collection General and administration General and Administrative Expense Unrecognized stock-based compensation expense, 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 provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Proceeds from property insurance settlement Proceeds from Insurance Settlement, Investing Activities Facility term Debt Instrument, Term Cash Flow Hedging Cash Flow Hedging [Member] Goodwill Excess purchase price allocated to goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Cash flow hedge derivatives, gross liability Derivative Liability, Subject to Master Netting Arrangement, before Offset For the remainder of the fiscal year ending December 31, 2025 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Buildings and improvements Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Building Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract] Equity Components [Axis] Equity Components [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Supplemental Disclosure of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Accounts receivable Business Combination, Recognized Asset Acquired, Receivable, Current Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Other Performance Measure, Amount Other Performance Measure, Amount Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Schedule of Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Payments of debt issuance costs Payments of Debt Issuance Costs Entity Address, State or Province Entity Address, State or Province Votes per share held (in votes) Stockholders' Equity, Number Of Votes, Each Share Stockholders' Equity, Number Of Votes, Each Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Total current liabilities Liabilities, Current Interest rate swap settlements Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Settlements, before Reclassification and Tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Settlements, before Reclassification and Tax Derivative Instrument [Axis] Derivative Instrument [Axis] Individual: Individual [Axis] Vesting [Axis] Vesting [Axis] Restricted cash Restricted Cash Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Accounting Changes and Error Corrections [Abstract] Right-of-use assets obtained in exchange for finance lease obligations Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Other current assets Other Assets, Current Additional paid-in capital Additional Paid in Capital, Common Stock Commitment fee percentage, adjustment Line of Credit Facility, Unused Capacity, Commitment Fee Percentage, Adjustment Line of Credit Facility, Unused Capacity, Commitment Fee Percentage, Adjustment 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] Notes payable with no stated interest rate maturing through September 2028 Notes Payable [Member] Notes Payable [Member] Cash interest payments Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Accounting Basis of Accounting, Policy [Policy Text Block] STOCKHOLDERS' EQUITY Shareholders' Equity and Share-Based Payments [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] Entity Interactive Data Current Entity Interactive Data Current Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Amended and Restated 1997 Employee Stock Purchase Plan Amended And Restated Nineteen Ninety Seven Employee Stock Purchase Plan [Member] Amended And Restated Nineteen Ninety Seven Employee Stock Purchase Plan [Member] Carrying Value Reported Value Measurement [Member] Plan Name [Domain] Plan Name [Domain] Expense from acquisition activities Expense (income) from acquisition activities Business Combination, Acquisition-Related Cost, Expense Unrecognized stock-based compensation, weighted average period Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Exercisable aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Waste Collection Acquisitions Transfer Stations Acquisition [Member] Transfer Stations Acquisition [Member] SEGMENT REPORTING Segment Reporting Disclosure [Text Block] Schedule of Goodwill [Table] Goodwill [Table] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Land Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment, Land Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Current maturities of debt Less—current maturities of debt Long-Term Debt and Lease Obligation, Current Allocated as follows: Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) [Abstract] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Principal amount of debt Debt and Lease Obligation Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Fronting fee Line of Credit Facility, Fronting Fee Percentage Line of Credit Facility, Fronting Fee Percentage Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Weighted average Weighted Average [Member] Intangible amortization expense Amortization of Intangible Assets Accumulated other comprehensive income (loss), before tax AOCI before Tax, Attributable to Parent 2016 Plan 2016 Incentive Plan [Member] 2016 Incentive Plan Schedule of Changes in Balances of Each Component of Accumulated Other Comprehensive (Loss) Income, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Depreciation and amortization Depreciation, Depletion and Amortization Other non-current assets Other Assets, Noncurrent Accrued interest Interest Payable, Current Entity Central Index Key Entity Central Index Key Other comprehensive loss, before tax: Other Comprehensive Income (Loss), before Tax [Abstract] PEO Name PEO Name Beginning balance Ending balance Asset Retirement Obligation Revenues Gross revenues Revenues Sale of stock, net proceeds Sale of Stock, Consideration Received on Transaction 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] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Accretion expense Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses Revolving Credit Facility Revolving Credit Facility [Member] Finance leases maturing through December 2107; bearing interest at a weighted average of 4.729% Finance Lease, Liability Arrangement Duration Trading Arrangement Duration Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Unvested Share-Based Payment Arrangement, Tranche One [Member] Contract liabilities Contract with Customer, Liability, Current Segments [Axis] Segments [Axis] Schedule of Cash Flow Hedges Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Prepaid expenses, inventories and other assets Increase (Decrease) in Prepaid Expense and Other Assets Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Class of Stock [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Unrecognized stock-based compensation expense Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Intangible assets Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill ASSETS Assets: Assets [Abstract] Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Balance Sheet Location [Axis] Statement of Financial Position Location, Balance [Axis] Fiscal year ending December 31, 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Three Vesting [Domain] Vesting [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value NHDES, Letter of Deficiency New Hampshire Department of Environmental Services, Letter of Deficiency [Member] New Hampshire Department of Environmental Services, Letter of Deficiency FAIR VALUE OF FINANCIAL INSTRUMENTS Fair Value Disclosures [Text Block] Business Combination [Line Items] Business Combination [Line Items] Credit Facility [Domain] Credit Facility [Domain] Intangible assets Finite-Lived Intangible Assets, Gross 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] Percentage of attainment level Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage Number of states in which entity operates Number of States in which Entity Operates Entity Address, Address Line One Entity Address, Address Line One Collection Collection [Member] Collection [Member] Accumulated Other Comprehensive (Loss) Income, Net of Tax AOCI Attributable to Parent [Member] Stated interest rate Debt Instrument, Interest Rate, Stated Percentage Accounts receivable - trade, allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Schedule of Revenue Attributable to Services Revenue from External Customers by Products and Services [Table Text Block] Operating lease liabilities, less current portion Operating Lease, Liability, Noncurrent Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Floor interest rate Debt Instrument, Floor Interest Rate Debt Instrument, Floor Interest Rate Fair Value as of Grant Date Award Grant Date Fair Value Entity Registrant Name Entity Registrant Name Schedule of Limited Partners' Capital Account by Class [Table] Partners' Capital, Limited Partner's Capital Account, Class [Table] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Dilutive effect of stock options and other stock awards (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 Variable rate adjustment Debt Instrument, Variable Rate Adjustment Debt Instrument, Variable Rate Adjustment Title of Individual [Domain] Title and Position [Domain] Total operating expenses Costs and Expenses Forfeited (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 Total assets Assets, Fair Value Disclosure Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Number of operating segments Number of Operating Segments Aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Outstanding contractual term Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Schedule of Debt Schedule of Debt [Table Text Block] Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Other long-term liabilities Other Noncurrent Liabilities [Member] Schedule of Intangible Assets by Type Schedule of Finite-Lived Intangible Assets [Table Text Block] Restatement Determination Date: Restatement Determination Date [Axis] Issuances of Class A common stock Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Non-PEO NEO Non-PEO NEO [Member] Outstanding aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Letters of credit outstanding Letters of Credit Outstanding, Amount Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2013 (“Vermont Bonds 2013”) due April 2036 - fixed rate interest period bearing interest at 4.625% through April 2028 Long Term Revenue Bond Series Two Thousand Thirteen Due Two Thousand Thirty Six [Member] Long Term Revenue Bond Series Two Thousand Thirteen Due Two Thousand Thirty Six [Member] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Interest income Interest Income, Other Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Name Trading Arrangement, Individual Name Award Type [Domain] Award Type [Domain] Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-1 (“FAME Bonds 2015R-1”) due August 2035 - fixed rate interest period bore interest at 5.125% through July 2025 Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-1 [Member] Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-1 [Member] Unrealized loss resulting from changes in fair value of derivative instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Resource Solutions Resource Solutions Operations [Member] Resource Solutions Operations Diluted earnings per common share (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Diluted Equity Awards Adjustments Equity Awards Adjustments [Member] Other items and 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[Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Fair Value Estimate of Fair Value Measurement [Member] Restricted Stock Restricted Stock Awards [Member] Restricted Stock Awards [Member] Rebate for Recycled or Returned Organic Materials Rebate, Recycled or Returned Organic Materials [Member] Rebate, Recycled or Returned Organic Materials MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Name Awards Close in Time to MNPI Disclosures, Individual Name AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Outstanding at beginning of period (in dollars per share) Outstanding at end of period (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 Denominators: Weighted 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Cash paid during the period for: Interest Paid, Including Capitalized Interest, Operating and Investing Activities [Abstract] Litigation Case [Axis] Litigation Case [Axis] Segments [Domain] Segments [Domain] Remaining capacity Line of Credit Facility, Remaining Borrowing Capacity Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Balance Sheet Location [Domain] Statement of Financial Position Location, Balance [Domain] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Accounting Standards Update and Change in Accounting Principle [Table Text Block] Less: current portion Accrued Environmental Loss Contingencies, Current Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Minimum Minimum [Member] Accretion expense Asset Retirement Obligation, Accretion Expense Business Combination Adjustments Goodwill, Measurement Period Adjustment Company Selected Measure Name Company Selected Measure Name Beginning balance Ending balance Accrual for Environmental Loss Contingencies Fair Value Measurement [Domain] Fair Value Measurement [Domain] Debt less unamortized debt issuance costs Long-Term Debt and Lease Obligation, Including Current Maturities Net income Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Cash flow hedge derivatives, gross asset Derivative Liability, Subject to Master Netting Arrangement, Asset Offset ACCRUED FINAL CAPPING, CLOSURE AND POST-CLOSURE COSTS Asset Retirement Obligation Disclosure [Text Block] DEBT Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] All Executive Categories All Executive Categories [Member] Eastern Eastern Region [Member] Eastern region. Common stock Common Stock, Value, Issued Goodwill [Roll Forward] Goodwill [Roll Forward] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Title of Individual [Axis] Title and Position [Axis] Weighted average common shares outstanding (in shares) Diluted weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Segment Reporting Segment Reporting, Policy [Policy Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Contractual term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Terms Cash acquired from acquisition Cash Acquired from Acquisition Derivative [Table] Derivative [Table] Business Combination [Axis] Business Combination [Axis] Entity Small Business Entity Small Business Interest rate swaps Interest Rate Derivative Liabilities, at Fair Value Number of additional shares (in shares) Additional Shares Issued Maximum Attainment Level Additional shares of Class A Common Stock potentially issuable if maximum attainment levels are met. 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Contract [Domain] Interest rate swap amounts reclassified into interest expense Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Proceeds from the public offering of Class A common stock Proceeds from Issuance of Common Stock 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 bearing interest at 2.950% through April 2029 Revenue Bond Series Two Thousand Thirteen Due Two Thousand Twenty Nine [Member] Revenue Bond Series Two Thousand Thirteen Due Two Thousand Twenty Nine [Member] Total revenues Rebates Revenue from Contract with Customer, Excluding Assessed Tax Award service period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period FAME Bonds 2024, Restricted Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2024, Restricted [Member] Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2024, Restricted All Individuals All Individuals [Member] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Fair Value Disclosures [Abstract] Additions to property and equipment Payments to Acquire Property, Plant, and Equipment Transferred at a point-in-time Transferred at Point in Time [Member] Name Forgone Recovery, Individual Name Expiration period Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Total current assets Assets, Current Statistical Measurement [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] Amounts Reclassified Out of Accumulated Other Comprehensive (Loss) Income, Net of Tax Reclassification out of Accumulated Other Comprehensive Income [Member] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Loss contingency accrual Loss Contingency Accrual Commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Effect of weighted average shares outstanding (in shares) Weighted Average Number of Shares Issued, Basic Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Aggregate intrinsic value of options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Other comprehensive loss, net of tax Other comprehensive income (loss), net of tax, hedging activity Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent CURRENT LIABILITIES: Liabilities, Current [Abstract] Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Accumulated other comprehensive income (loss), tax AOCI Tax, Attributable to Parent Weighted average percentage rate paid Derivative, Average Fixed Interest Rate Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] Capitalized landfill project development costs Deferred Costs, Noncurrent Line of credit drawn Long-Term Line of Credit Revenues Business Combination, Pro Forma Information, Pro Forma Revenue Accrued expenses, contract liabilities and other liabilities Increase (Decrease) in Accrued Liabilities Landfill Landfill [Member] Diluted earnings per common share (in dollars per share) Earnings Per Share, Diluted Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accounts receivable, net of allowance for credit losses of $6,734 and $8,515, respectively Accounts Receivable, after Allowance for Credit Loss, Current Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Title of 12(b) Security Title of 12(b) Security Long-term portion Accrued Environmental Loss Contingencies, Noncurrent 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 Sale of stock, number of shares issued Sale of Stock, Number of Shares Issued in Transaction Earnings Per Share [Abstract] Covenants Not-to-Compete Noncompete Agreements [Member] Cost method investments Other Investments and Securities, at Cost Consolidation Items [Domain] Consolidation Items [Domain] BASIS OF PRESENTATION Business Description and Basis of Presentation [Text Block] Other expense, net Nonoperating Income (Expense) Landfill gas-to-energy Solid Waste Operations, Landfill Gas-To-Energy [Member] Solid Waste Operations, Landfill Gas-To-Energy Impact of potentially dilutive securities: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2024 (“FAME Bonds 2024”) due December 2047 - fixed rate interest period bearing interest at 4.625% through May 2035 FAME Bonds 2024 Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2024 [Member] Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2024 Cash income tax payments Income Taxes Paid, Net Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Fiscal year ending December 31, 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Two Processing Processing Services [Member] Processing Services Award Timing Disclosures [Line Items] Schedule of Changes to Accrued Capping, Closure and Post-Closure Liabilities Schedule of Change in Asset Retirement Obligation [Table Text Block] Principal amount of debt Long-Term Debt, Gross Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Measurement Frequency [Domain] Measurement Frequency [Domain] 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 Accrued payroll and related expenses Employee-related Liabilities, Current Property and equipment, net of accumulated depreciation and amortization of $1,446,292 and $1,302,324, respectively Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization 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. Restricted assets Restricted investment securities - landfill closure Restricted Cash and Investments, Noncurrent Trade Names Trade Names [Member] Net income Net income Net income (loss) Net income Net Income (Loss) Attributable to Parent Inter-company revenue Intersegment Eliminations [Member] Expiration Date Trading Arrangement Expiration Date Processing Solid Waste Operations, Processing [Member] Solid Waste Operations, Processing Other accrued liabilities Other Accrued Liabilities, Current Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Resource Solutions Resource Solutions Region [Member] Resource Solutions Region [Member] Adoption Date Trading Arrangement Adoption Date Base Rate Base Rate [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Entity Current Reporting Status Entity Current Reporting Status Derivative [Line Items] Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Revenue from External Customers by Products and Services [Table] Segment Reporting, Revenue from External Customer, Product and Service [Table] Cash Flows from Financing Activities: Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Customer Relationships Customer Relationships [Member] Operating income Operating Income (Loss) Line of Credit Line of Credit [Member] Number of wholly owned subsidiaries acquired Number Of Wholly Owned Subsidiaries Acquired Number Of Wholly Owned Subsidiaries Acquired Hedging activity: Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, before Tax [Abstract] Accumulated deficit Retained Earnings (Accumulated Deficit) Statement of Financial Position [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Executive Category: Executive Category [Axis] Transferred over time Transferred over Time [Member] Current Fiscal Year End Date Current Fiscal Year End Date Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Axis] Processing Resource Solutions Operations, Processing [Member] Resource Solutions Operations, Processing Interest Rate Swaps Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] 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] Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-3 (“FAME Bonds 2015R-3”) due August 2035 - fixed rate interest period bearing interest at 5.000% through August 2035 FAME Bonds 2015R-3 Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-3 [Member] Finance Authority Of Maine Solid Waste Disposal Revenue Bonds Series 2015R-3 Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Number of shares available for future grant (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Other income Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Schedule of Purchase Price Paid for Acquisitions Business Combination [Table Text Block] Deferred income taxes Deferred Income Tax Expense (Benefit) Adjustments to 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Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Weighted average common shares outstanding (in shares) Basic weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Cost of operations Cost of Product and Service Sold Schedule of Earnings (Loss) per Share Computation Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Exercisable at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Number of businesses acquired Business Combination, Number of Businesses Acquired Schedule of Reclassifications Out of Accumulated Other Comprehensive Loss, Net of Tax Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Operating lease right-of-use assets expense Operating Lease, Expense Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Amortization of debt issuance costs Amortization of Debt Issuance Costs Other expense (income): Nonoperating Income (Expense) [Abstract] Entity Tax Identification Number Entity Tax Identification Number Operating expenses: Costs and Expenses [Abstract] Interest rate swap amounts reclassified into interest expense Reclassification from AOCI, Current Period, before Tax, Attributable to Parent Beginning balance, outstanding (in dollars per share) Ending balance, outstanding (in dollars per share) 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 2006 Incentive Plan 2006 Incentive Plan [Member] Two thousand six stock incentive plan. Common stock, shares issued (in shares) Common Stock, Shares, Issued Refundable income taxes Income Taxes Receivable, Current Non Employee Director Non Employee Director [Member] Non Employee Director [Member] Gross receivables from contracts Contract with Customer, Asset, before Allowance for Credit Loss, Current 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] Obligations settled Accrual for Environmental Loss Contingencies, Payments Use of Estimates Use of Estimates, Policy [Policy Text Block] Income tax benefit related to items of other comprehensive loss Income tax benefit related to items of other comprehensive loss Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Schedule of Goodwill Activity Schedule of Goodwill [Table Text Block] Interest expense Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Basic earnings per common share (in dollars per share) Business Combination, Pro Forma Information, Pro Forma Earnings Per Share, Basic Environmental Remediation Site [Domain] Loss Contingencies [Line Items] Insider Trading Arrangements [Line Items] Corporate Entities Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Security Exchange Name Security Exchange Name Limited Partners' Capital Account [Line Items] Limited Partners' Capital Account [Line Items] Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Prepaid expenses Prepaid Expense, Current Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] National Accounts National Accounts [Member] National Accounts Issuance of Class A common stock - stock issuance costs Stock Issued During Period, Value, New Issues 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 cash equivalents Cash and Cash Equivalent Risk free interest Accrual for Environmental Loss Contingencies, Discount Rate Common stock, additional authorized shares (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Common Stock Common Stock [Member] Class A Common Stock 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 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 Non-NEOs Non-NEOs [Member] Net (decrease) increase in cash, cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation