ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 2,302,217	$ 1,821,065	$ 1,780,533	$ 1,877,602	$ 1,877,602
Total other comprehensive (loss) income	(3,750)	(2,350)	40,143	(561)
Ending balance	2,278,705	1,802,765	2,278,705	1,802,765	1,780,533
Pension
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Pre-tax non-cash pension settlement charge					4,600
Tax on settlement charge				(1,200)	1,200
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	30,712	27,749	(10,429)	24,651	24,651
Other comprehensive (loss) income before reclassifications			20,938		(12,489)
Amounts reclassified from accumulated other comprehensive (loss) income			(12,165)		(22,591)
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			29,068
Total other comprehensive (loss) income			37,841		(35,080)
Ending balance	27,412	$ 23,574	27,412	23,574	(10,429)
Foreign currency translation (losses) gains
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(51,149)	(19,533)	(19,533)
Other comprehensive (loss) income before reclassifications			19,766		(31,616)
Amounts reclassified from accumulated other comprehensive (loss) income			0		0
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			31,383
Total other comprehensive (loss) income			51,149		(31,616)
Ending balance	0		0		(51,149)
Net investment hedges of New Zealand subsidiary
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			1,321	1,321	1,321
Other comprehensive (loss) income before reclassifications			0		0
Amounts reclassified from accumulated other comprehensive (loss) income			0		0
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			(1,321)
Total other comprehensive (loss) income			(1,321)		0
Ending balance	0		0		1,321
Cash flow hedges
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			41,733	55,846	55,846
Other comprehensive (loss) income before reclassifications			1,265		13,713
Amounts reclassified from accumulated other comprehensive (loss) income			(12,749)		(27,826)
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			(994)
Total other comprehensive (loss) income			(12,478)		(14,113)
Ending balance	29,255		29,255		41,733
Cash flow hedges | Interest rate swaps
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Other comprehensive (loss) income before reclassifications			(4,800)		21,800
Employee benefit plans
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			230	(9,616)	(9,616)
Other comprehensive (loss) income before reclassifications			0		5,251
Amounts reclassified from accumulated other comprehensive (loss) income			(5)		4,595
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			0
Total other comprehensive (loss) income			(5)		9,846
Ending balance	225		225		230
Total Rayonier, L.P.
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(7,865)	28,018	28,018
Other comprehensive (loss) income before reclassifications			21,031		(12,652)
Amounts reclassified from accumulated other comprehensive (loss) income			(12,754)		(23,231)
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			29,068
Total other comprehensive (loss) income			37,345		(35,883)
Ending balance	29,480		29,480		(7,865)
Allocation of Operating Partnership
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance			(2,564)	$ (3,367)	(3,367)
Other comprehensive (loss) income before reclassifications			(93)		163
Amounts reclassified from accumulated other comprehensive (loss) income			589		640
Amounts reclassified from accumulated other comprehensive (loss) income due to deconsolidation of discontinued operations			0
Total other comprehensive (loss) income			496		803
Ending balance	$ (2,068)		$ (2,068)		$ (2,564)