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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments under Non-Cancellable Operating Leases

Future minimum rental payments under non-cancellable operating leases, which include landfill operating leases, are as follows:


Estimated Future Minimum Lease Payments as of December 31, 2015:
2016	$	17,591
2017		17,838
2018		17,954
2019		16,519
2020		13,218
Thereafter		117,224

Total minimum lease payments	$	200,344

Schedule of Environmental Liability Associated with Potsdam

The changes to the environmental remediation liability associated with the Potsdam environmental remediation liability are as follows:


	Fiscal Year Ended		Eight Months Ended			Fiscal Year Ended
	December 31, 2015		December 31, 2014			April 30, 2014
Beginning balance	$	5,142	$	5,320		$	5,297
Obligations incurred		—		—			31
Revisions in estimates (1)		—		—			(118	)
Accretion expense		79		92			138
Payments		—		(270	)		(28	)

Ending balance	$	5,221	$	5,142		$	5,320

Schedule of Total Expected Environmental Remediation Payments for Succeeding Year

The total expected environmental remediation payments, in today’s dollars, for each of the five succeeding fiscal years and the aggregate amount thereafter are as follows:


Estimated Future Environmental Remediation Payments as of December 31, 2015:
2016	$	273
2017		3,256
2018		855
2019		40
2020		25
Thereafter		749

Total	$	5,198

Reconciliation of Expected Aggregate Non-inflated, Undiscounted Environmental Remediation Liability to Amount Recognized in Statement of Financial Position

A reconciliation of the expected aggregate non-inflated, undiscounted environmental remediation liability to the amount recognized in the statement of financial position is as follows:


Undiscounted liability	$	5,198
Plus inflation		23

Liability balance - December 31, 2015	$	5,221