EARNINGS (LOSS) PER SHARE AND PER UNIT - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator:
Net Income (Loss)	$ 110,512			$ (9,498)			$ 188,963	$ 17,378
Less: Net (income) loss attributable to noncontrolling interests in the Operating Partnership	(2,210)	$ (1,753)	$ (341)	25	$ (219)		(4,303)	(195)
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	(32,471)			8,715			(40,775)	9,647
Net income (loss) attributable to Rayonier Inc.	$ 75,831			$ (758)			$ 143,885	$ 26,830
Denominator:
Denominator for basic earnings (loss) per common share - weighted average shares (in shares)	141,777,574			136,351,271			139,749,358	132,948,124
Basic earnings per common share attributable to Rayonier Inc (in dollars per share)	$ 0.53			$ (0.01)			$ 1.03	$ 0.20
Numerator:
Net Income (Loss)	$ 110,512			$ (9,498)			$ 188,963	$ 17,378
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	32,471			(8,715)			40,775	(9,647)
Less: Net loss attributable to noncontrolling interests in the Operating Partnership	0			25			0	0
Net income (loss) attributable to Rayonier Inc., before net income attributable to noncontrolling interests in the Operating Partnership	78,041			(758)			148,188	27,025
Net income (loss) attributable to Rayonier Inc.	$ 75,831			$ (758)			$ 143,885	$ 26,830
Denominator:
Denominator for basic earnings (loss) per common share - weighted average shares (in shares)	141,777,574			136,351,271			139,749,358	132,948,124
Add: Dilutive effect of:
Stock options (in shares/units)	9,803			0			8,833	492
Performance shares, restricted shares and restricted stock units (in shares/units)	520,737			0			361,596	159,018
Noncontrolling interest in common units (in shares)	4,131,454			0			4,245,323	2,352,822
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	146,439,568			136,351,271			144,365,110	135,460,456
Diluted earnings (loss) per common share attributable to Rayonier Inc. (in dollars per share)	$ 0.53			$ (0.01)			$ 1.03	$ 0.20
Rayonier Limited Partnership
Numerator:
Net Income (Loss)	$ 110,512	63,420	15,032	$ (9,498)	455	$ 26,421	$ 188,963	$ 17,378
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	(32,471)			8,715			(40,775)	9,647
Net income (loss) attributable to Rayonier Inc.	$ 78,041			$ (783)			$ 148,188	$ 27,025
Denominator:
Denominator for basic earnings per unit - weighted average units (in units)	145,909,028			140,797,217			143,994,681	135,300,946
Basic earnings per unit attributable to Rayonier, L.P. (in dollars per unit)	$ 0.53			$ (0.01)			$ 1.03	$ 0.20
Numerator:
Net Income (Loss)	$ 110,512	$ 63,420	$ 15,032	$ (9,498)	$ 455	$ 26,421	$ 188,963	$ 17,378
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	32,471			(8,715)			40,775	(9,647)
Net income (loss) attributable to Rayonier Inc.	$ 78,041			$ (783)			$ 148,188	$ 27,025
Denominator:
Denominator for basic earnings per unit - weighted average units (in units)	145,909,028			140,797,217			143,994,681	135,300,946
Add: Dilutive effect of:
Stock options (in shares/units)	9,803			0			8,833	492
Performance shares, restricted shares and restricted stock units (in shares/units)	520,737			0			361,596	159,018
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	146,439,568			140,797,217			144,365,110	135,460,456
Diluted earnings (loss) per unit attributable to Rayonier, L.P. (in dollars per unit)	$ 0.53			$ (0.01)			$ 1.03	$ 0.20