FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Summary of Financial Assets and Liabilities at Fair Value

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

	Fair Value Measurement at March 31, 2019 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Restricted investment securities - landfill closure	$	1,345	$	—	$	—
Interest rate swaps	—		412		—
	$	1,345	$	412	$	—
Liabilities:
Interest rate swaps	$	—	$	3,012	$	—

	Fair Value Measurement at December 31, 2018 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Restricted investment securities - landfill closure	$	1,248	$	—	$	—
Interest rate swaps	—		820
	$	1,248	$	820	$	—
Liabilities:
Interest rate swaps	$	—	$	1,942	$	—