INCOME TAXES - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Effective Income Tax Rate Reconciliation, Amount [Abstract]
U.S. federal statutory income tax rate	$ (16,930)	$ (29,939)	$ (64,141)
U.S. and foreign REIT income	19,902	32,949	63,813
Matariki Group and Rayonier New Zealand Ltd	(11,181)	(23,166)	(19,182)
Transition tax	0	0	(3,506)
Change in valuation allowance	(482)	(3,950)	(13,028)
ASU No. 2016-16 adoption impact	0	0	16,631
Deemed repatriation of unremitted foreign earnings	0	0	7,368
Reduction of deferred tax asset for statutory rate change	0	0	(10,499)
Internal transfer of assets deferred	(1,815)	0	0
Foreign income tax withholding	(1,535)	(1,848)	0
Other	(899)	718	863
Income tax expense as reported for net income	$ (12,940)	$ (25,236)	$ (21,681)
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory income tax rate	(21.00%)	(21.00%)	(35.00%)
U.S. and foreign REIT income	24.70%	23.10%	34.80%
Matariki Group and Rayonier New Zealand Ltd	(13.90%)	(16.20%)	(10.50%)
Transition tax	0	0	(0.019)
Change in valuation allowance	(0.60%)	(2.80%)	(7.10%)
ASU No. 2016-16 adoption impact	0.00%	0.00%	9.10%
Deemed repatriation of unremitted foreign earnings	0.00%	0.00%	4.00%
Reduction of deferred tax asset for statutory rate change	0.00%	0.00%	(5.70%)
Internal transfer of assets deferred	(2.30%)	0.00%	0.00%
Foreign income tax withholding	(1.90%)	(1.30%)	0.00%
Other	(1.10%)	0.50%	0.50%
Income tax expense as reported for net income	(16.10%)	(17.70%)	(11.80%)