OTHER ASSETS - Asset Balances (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Derivative assets	$ 11,796	$ 1,563
Long-term and prepaid and secondary roads	10,861	9,854
Patronage Equity	7,322	6,685
Long-term prepaid stumpage	1,461	3,137
Revolving Credit Facility
Finite-Lived Intangible Assets [Line Items]
Deferred financing costs related to revolving debt	1,104	1,040
Software Costs
Finite-Lived Intangible Assets [Line Items]
Capitalized software costs	3,117	3,651
Pacific Northwest
Finite-Lived Intangible Assets [Line Items]
Long-term and prepaid and secondary roads	4,131	4,087
New Zealand
Finite-Lived Intangible Assets [Line Items]
Long-term and prepaid and secondary roads	$ 6,730	$ 5,767