FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Disclosures [Abstract]

Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis

Summaries of our financial assets and liabilities that are measured at fair value on a recurring basis follow:

	Fair Value Measurement at June 30, 2017 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Interest rate derivatives	$	—	$	95	$	—
Restricted investments - landfill closure	1,065		—		—
Total	$	1,065	$	95	$	—
Liabilities:
Interest rate derivatives	$	—	$	373	$	—

	Fair Value Measurement at December 31, 2016 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Restricted investments - landfill closure	$	1,002	$	—	$	—

Fair Value Measurements, Nonrecurring

A summary of our financial assets and liabilities that are measured at fair value on a non-recurring basis follows:

	Fair Value Measurement at June 30, 2017 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Southbridge landfill asset group - long-lived assets	$	—	$	—	$	8,017