Commitments (Tables)

12 Months Ended

Dec. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases

At December 31, 2015, the future minimum payments under non-cancellable operating leases and purchase obligations were as follows:

	Operating Leases (a)		Purchase Obligations (b)
2016	$	1,273	$	16,573
2017	1,140		14,771
2018	720		5,490
2019	448		3,826
2020	400		3,826
Thereafter	431		19,856
Total	$	4,412	$	64,342

(a) Operating leases include leases on buildings, machinery and equipment under various operating leases.

(b) Purchase obligations primarily consist of payments expected to be made on a natural gas transportation contract and purchases of wood chips.