LONG TERM DEBT AND CAPITAL LEASES - Components of Long-Term Debt and Capital Leases - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Senior Secured Asset-Backed Credit Facility, Due February 2020; bearing interest at one month LIBOR plus 2.25%
Debt Instrument [Line Items]
Basis spread on variable rate		2.25%
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014 due December 2044 - fixed rate interest period through 2019; bearing interest at 3.75%
Debt Instrument [Line Items]
Debt instrument stated percentage	3.75%	3.75%
New York State Environmental Facilities Corporation Solid Waste Disposal Revenue Bonds Series 2014R-2 due December 2044 - fixed rate interest period through 2026; bearing interest at 3.125%
Debt Instrument [Line Items]
Debt instrument stated percentage	3.125%
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-2 due January 2025 - fixed rate interest period through 2017; bearing interest at 6.25%
Debt Instrument [Line Items]
Debt instrument stated percentage	6.25%	6.25%
Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2015 due August 2035 - fixed rate interest period through 2025; bearing interest at 5.125%
Debt Instrument [Line Items]
Debt instrument stated percentage	5.125%	5.125%
Vermont Economic Development Authority Solid Waste Disposal Long-Term Revenue Bonds Series 2013 due April 2036 - fixed rate interest period through 2018; bearing interest at 4.75%
Debt Instrument [Line Items]
Debt instrument stated percentage	4.75%	4.75%
Business Finance Authority of the State of New Hampshire Solid Waste Disposal Revenue Bonds Series 2013 due April 2029 - fixed rate interest period through 2019; bearing interest at 4.00%
Debt Instrument [Line Items]
Debt instrument stated percentage	4.00%	4.00%
Capital leases maturing through April 2023; bearing interest at up to 7.70%
Debt Instrument [Line Items]
Debt instrument stated percentage	7.70%	7.70%
Notes payable maturing through January 2021; bearing interest at up to 7.00%
Debt Instrument [Line Items]
Debt instrument stated percentage	7.00%	7.00%
Senior Subordinated Notes, Due February 2019; bore interest at 7.75%
Debt Instrument [Line Items]
Debt instrument stated percentage	7.75%	7.75%
Unamortized discount	$ 0	$ 1,372
Revolving Credit Facility due October 2021; bearing interest at LIBOR plus 3.00% | Revolving Credit Facility | Line of Credit
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%
Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00% | Secured Debt
Debt Instrument [Line Items]
Basis spread on variable rate	3.00%
Unamortized discount	$ 1,712	$ 0