Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Gross deferred tax assets:
Pension, postretirement and other employee benefits	$ 1,017	$ 1,648
New Zealand JV	40,224	60,452
CBPC Tax Credit Carry Forwards	14,641	14,641
Capitalized real estate costs	7,058	11,489
U.S. TRS Net Operating Loss	1,872	4,730
Land basis difference	11,090	0
Other	5,079	9,165
Total gross deferred tax assets	80,981	102,125
Less: Valuation allowance	(34,889)	(21,861)
Total deferred tax assets after valuation allowance	46,092	80,264
Gross deferred tax liabilities:
Accelerated depreciation	(35)	(1,322)
Repatriation of foreign earnings	0	(7,368)
New Zealand JV	(72,527)	(70,315)
Timber installment sale	(4,706)	(7,601)
Other	(1,270)	(3,833)
Total gross deferred tax liabilities	(78,538)	(90,439)
Net deferred tax liability reported as noncurrent	$ (32,446)	$ (10,175)