ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 1,537,642	$ 1,654,550
Other comprehensive (loss) income before reclassifications	(50,510)	(30,266)
Amounts reclassified from accumulated other comprehensive (loss) income	7,827	(1,175)
Net other comprehensive (loss) income	(42,683)	(31,441)
Ending balance	1,862,645	1,537,642
Accumulated Other Comprehensive Income (Loss)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(31,202)	239
Ending balance	(73,885)	(31,202)
Foreign currency translation gains/(losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(226)	(1,010)
Other comprehensive (loss) income before reclassifications	22,928	784
Amounts reclassified from accumulated other comprehensive (loss) income	0	0
Net other comprehensive (loss) income	22,928	784
Ending balance	22,702	(226)
Net investment hedges of New Zealand subsidiary
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	1,321	1,321
Other comprehensive (loss) income before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive (loss) income	0	0
Net other comprehensive (loss) income	0	0
Ending balance	1,321	1,321
Cash flow hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(8,910)	21,965
Other comprehensive (loss) income before reclassifications	(71,644)	(29,251)
Amounts reclassified from accumulated other comprehensive (loss) income	9,498	(1,624)
Net other comprehensive (loss) income	(62,146)	(30,875)
Ending balance	(71,056)	(8,910)
Employee benefit plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(23,387)	(22,037)
Other comprehensive (loss) income before reclassifications	(1,794)	(1,799)
Amounts reclassified from accumulated other comprehensive (loss) income	869	449
Net other comprehensive (loss) income	(925)	(1,350)
Ending balance	(24,312)	(23,387)
Total Rayonier, L.P. | Rayonier Limited Partnership
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(31,202)	239
Other comprehensive (loss) income before reclassifications	(50,510)	(30,266)
Amounts reclassified from accumulated other comprehensive (loss) income	10,367	(1,175)
Net other comprehensive (loss) income	(40,143)	(31,441)
Ending balance	(71,345)	(31,202)
Allocation of Operating Partnership
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	0	0
Other comprehensive (loss) income before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive (loss) income	(2,540)	0
Net other comprehensive (loss) income	(2,540)	0
Ending balance	(2,540)	$ 0
Cash flow hedges | Interest rate swaps
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Other comprehensive (loss) income before reclassifications	$ (76,600)