(LOSS) EARNINGS 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, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net (loss) income	$ (9,498)			$ 1,528			$ 17,378	$ 50,241
Less: Net loss (income) attributable to noncontrolling interest in the Operating Partnership	25	$ (219)		0			(195)	0
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	8,715			(1,961)			9,647	(7,129)
Net (loss) income attributable to Rayonier Inc.	$ (758)			$ (433)			$ 26,830	$ 43,112
Denominator:
Denominator for basic (loss) earnings per common share - weighted average shares (in shares)	136,351,271			129,325,181			132,948,124	129,293,562
Basic (loss) earnings per common share attributable to Rayonier Inc (in dollars per share)	$ (0.01)			$ 0			$ 0.20	$ 0.33
Numerator:
Net (loss) income	$ (9,498)			$ 1,528			$ 17,378	$ 50,241
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	8,715			(1,961)			9,647	(7,129)
Less: Net loss (income) attributable to noncontrolling interest in the Operating Partnership	25			0			0	0
Net (loss) income attributable to Rayonier Inc. used for determining (Loss) Earnings per common share - diluted	$ (758)			$ (433)			$ 27,025	$ 43,112
Denominator:
Denominator for basic (loss) earnings per common share - weighted average shares (in shares)	136,351,271			129,325,181			132,948,124	129,293,562
Add: Dilutive effect of:
Stock options (in shares/units)	0			0			492	13,405
Performance shares,restricted shares and restricted stock units (in shares/units)	0			0			159,018	345,495
Noncontrolling interest in common units (in shares)	0			0			2,352,822	0
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	136,351,271			129,325,181			135,460,456	129,652,462
Diluted (loss) earnings per common share attributable to Rayonier Inc. (in dollars per share)	$ (0.01)			$ 0			$ 0.20	$ 0.33
Rayonier Limited Partnership
Numerator:
Net (loss) income	$ (9,498)	455	$ 26,421	$ 1,528	$ 20,920	$ 27,793	$ 17,378	$ 50,241
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	8,715			(1,961)			9,647	(7,129)
Net (loss) income attributable to Rayonier Inc.	$ (783)			$ (433)			$ 27,025	$ 43,112
Denominator:
Denominator for basic (loss) earnings per common unit - weighted average units (in units)	140,797,217			129,325,181			135,300,946	129,293,562
Basic (loss) earnings per common unit attributable to Rayonier, L.P. (in dollars per unit)	$ (0.01)			$ 0			$ 0.20	$ 0.33
Numerator:
Net (loss) income	$ (9,498)	$ 455	$ 26,421	$ 1,528	$ 20,920	$ 27,793	$ 17,378	$ 50,241
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	$ 8,715			$ (1,961)			$ 9,647	$ (7,129)
Denominator:
Denominator for basic (loss) earnings per common unit - weighted average units (in units)	140,797,217			129,325,181			135,300,946	129,293,562
Add: Dilutive effect of:
Stock options (in shares/units)	0			0			492	13,405
Performance shares,restricted shares and restricted stock units (in shares/units)	0			0			159,018	345,495
Denominator for diluted (loss) earnings per common share - adjusted weighted average shares (in shares/units)	140,797,217			129,325,181			135,460,456	129,652,462
Diluted earnings (loss) per share attributable to Rayonier, L.P. (in dollars per unit)	$ (0.01)			$ 0			$ 0.20	$ 0.33