Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2016

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, 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 assets - capital projects	$	848	$	—	$	—
Restricted assets - landfill closure		914		—		—
Total	$	1,762	$	—	$	—
	Fair Value Measurement at December 31, 2015 Using:
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Restricted assets - capital projects	$	1,348	$	—	$	—
Restricted assets - landfill closure		903		—		—
Total	$	2,251	$	—	$	—
Liabilities:
Interest rate derivative	$	—	$	178	$	—