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Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-2 ("FAME Bonds 2015R-2") due August 2035 - fixed rate interest period through 2025; bearing interest at 4.375% 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] Non-current assets obtained through long-term financing obligations Fair Value of Assets Acquired Business Combination and Asset Acquisition [Abstract] 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 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 Business Acquisition [Axis] Business Acquisition [Axis] Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Cash Flow Hedging Cash Flow Hedging [Member] Title of Individual [Domain] Title of Individual [Domain] Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding Award Type [Domain] Award Type [Domain] Local Phone Number Local Phone Number Credit Facility [Domain] Credit Facility [Domain] ASSETS Assets: Assets [Abstract] Revenue, Initial Application Period Cumulative Effect Transition [Table] Revenue, Initial Application Period Cumulative Effect Transition [Table] Weighted Average Remaining Contractual Term (years) and Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Exercisable at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Proceeds from the exercise of share based awards Proceeds, Issuance of Shares, Share-based Payment Arrangement, Including Option Exercised Beginning balance, outstanding (in shares) Ending balance, outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Trade Names Trade Names [Member] Accumulated Deficit Retained Earnings [Member] Debt Instrument [Axis] Debt Instrument [Axis] Prepaid expenses, inventories and other assets Increase (Decrease) in Prepaid Expense and Other Assets Fixed rate debt Debt Instrument, Fair Value Disclosure Accretion expense Asset Retirement Obligation, Accretion Expense OTHER ITEMS AND CHARGES Unusual or Infrequent Items, or Both, Disclosure [Text Block] Restricted Stock, 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. 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bearing interest at a weighted average of 3.5% Finance Lease, Liability Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2013 ("Vermont Bonds") due April 2036 - fixed rate interest period through 2028; bearing interest at 4.625% 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] Business Acquisition [Line Items] Business Acquisition [Line Items] Income Statement [Abstract] Fair Value Estimate of Fair Value Measurement [Member] ACCRUED FINAL CAPPING, CLOSURE AND POST CLOSURE Asset Retirement Obligation Disclosure [Text Block] Entity Registrant Name Entity Registrant Name Diluted earnings per common share (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015R-1 ("FAME Bonds 2015R-1") due August 2035 - fixed rate interest period through 2025; 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