Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016
Gross deferred tax assets:
Pension, postretirement and other employee benefits	$ 1,040	$ 1,648
New Zealand JV	65,078	60,452
CBPC Tax Credit Carry Forwards	14,641	14,641
Capitalized real estate costs	9,378	11,489
U.S. TRS Net Operating Loss	2,327	4,730
Other	7,050	9,165
Total gross deferred tax assets	99,514	102,125
Less: Valuation allowance	(18,248)	(21,861)
Total deferred tax assets after valuation allowance	81,266	80,264
Gross deferred tax liabilities:
Accelerated depreciation	(1,357)	(1,322)
Repatriation of foreign earnings	(7,251)	(7,368)
New Zealand JV	(68,551)	(70,315)
Timber installment sale	(7,511)	(7,601)
Other	(311)	(3,833)
Total gross deferred tax liabilities	(84,981)	(90,439)
Net deferred tax (liability)/asset reported as noncurrent	(3,715)	$ (10,175)
Return to accrual tax adjustment	$ 1,000