EARNINGS PER SHARE AND PER UNIT - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income	$ 63,420		$ 455		$ 78,452	$ 26,876
Less: Net income attributable to noncontrolling interests in the Operating Partnership	(1,753)	$ (341)	(219)		(2,094)	(219)
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	(4,461)		1,499		(8,304)	931
Net income attributable to Rayonier Inc.	$ 57,206		$ 1,735		$ 68,054	$ 27,588
Denominator:
Denominator for basic earnings per common share - weighted average shares (in shares)	139,556,748		133,318,209		138,718,442	131,227,852
Basic earnings per common share attributable to Rayonier Inc (in dollars per share)	$ 0.41		$ 0.01		$ 0.49	$ 0.21
Numerator:
Net income	$ 63,420		$ 455		$ 78,452	$ 26,876
Less: Net income attributable to noncontrolling interests in the Operating Partnership	1,753	341	219		2,094	219
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	4,461		(1,499)		8,304	(931)
Net income attributable to Rayonier Inc., before net income attributable to noncontrolling interests in the Operating Partnership	$ 58,959		$ 1,954		$ 70,148	$ 27,807
Denominator:
Denominator for basic earnings per common share - weighted average shares (in shares)	139,556,748		133,318,209		138,718,442	131,227,852
Add: Dilutive effect of:
Stock options (in shares/units)	12,646		0		8,348	537
Performance shares, restricted shares and restricted stock units (in shares/units)	210,923		49,299		282,027	129,390
Noncontrolling interest in common units (in shares)	4,275,912		2,589,518		4,303,201	1,294,759
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	144,056,229		135,957,026		143,312,018	132,652,538
Diluted earnings per common share attributable to Rayonier Inc. (in dollars per share)	$ 0.41		$ 0.01		$ 0.49	$ 0.21
Rayonier Limited Partnership
Numerator:
Net income	$ 63,420	15,032	$ 455	$ 26,421	$ 78,452	$ 26,876
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	(4,461)		1,499		(8,304)	931
Net income attributable to Rayonier Inc.	$ 58,959		$ 1,954		$ 70,148	$ 27,807
Denominator:
Denominator for basic earnings per unit - weighted average units (in units)	143,832,660		135,907,727		143,021,643	132,522,611
Basic earnings per unit attributable to Rayonier, L.P. (in dollars per unit)	$ 0.41		$ 0.01		$ 0.49	$ 0.21
Numerator:
Net income	$ 63,420	$ 15,032	$ 455	$ 26,421	$ 78,452	$ 26,876
Less: Net (income) loss attributable to noncontrolling interests in consolidated affiliates	$ 4,461		$ (1,499)		$ 8,304	$ (931)
Denominator:
Denominator for basic earnings per unit - weighted average units (in units)	143,832,660		135,907,727		143,021,643	132,522,611
Add: Dilutive effect of:
Stock options (in shares/units)	12,646		0		8,348	537
Performance shares, restricted shares and restricted stock units (in shares/units)	210,923		49,299		282,027	129,390
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	144,056,229		135,957,026		143,312,018	132,652,538
Diluted earnings per unit attributable to Rayonier, L.P. (in dollars per unit)	$ 0.41		$ 0.01		$ 0.49	$ 0.21