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, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net income	$ 455		$ 20,920		$ 26,876	$ 48,713
Less: Net income attributable to noncontrolling interest in the Operating Partnership	(219)		0		(219)	0
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	1,499		(2,168)		931	(5,167)
Net income attributable to parent	$ 1,735		$ 18,752		$ 27,588	$ 43,546
Denominator:
Denominator for basic earnings per common share - weighted average shares (in shares)	133,318,209		129,380,282		131,227,852	129,277,490
Basic earnings per common share attributable to Rayonier Inc.(in dollars per share)	$ 0.01		$ 0.14		$ 0.21	$ 0.34
Numerator:
Net income	$ 455		$ 20,920		$ 26,876	$ 48,713
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	(1,499)		2,168		(931)	5,167
Net income attributable to Rayonier Inc., before net income attributable to noncontrolling interests in the Operating Partnership	$ 1,954		$ 18,752		$ 27,807	$ 43,546
Denominator:
Denominator for basic earnings per common share - weighted average shares (in shares)	133,318,209		129,380,282		131,227,852	129,277,490
Add: Dilutive effect of:
Stock options (in shares/units)	0		13,463		537	16,580
Performance shares,restricted shares and restricted stock units (in shares/units)	49,299		250,170		129,390	403,915
Noncontrolling interest in common units (in shares)	2,589,518		0		1,294,759	0
Denominator for diluted earning per common share - adjusted weighted average shares (in shares/units)	135,957,026		129,643,915		132,652,538	129,697,985
Diluted earnings per common share attributable to Rayonier Inc. (in dollars per share)	$ 0.01		$ 0.14		$ 0.21	$ 0.34
Rayonier Limited Partnership
Numerator:
Net income	$ 455	$ 26,421	$ 20,920	$ 27,793	$ 26,876	$ 48,713
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	1,499		(2,168)		931	(5,167)
Net income attributable to parent	$ 1,954		$ 18,752		$ 27,807	$ 43,546
Denominator:
Denominator for basic earnings per common unit - weighted average units (in units)	135,907,727		129,380,282		132,522,611	129,277,490
Basic earnings per share attributable to Rayonier, L.P. (in dollars per unit)	$ 0.01		$ 0.14		$ 0.21	$ 0.34
Numerator:
Net income	$ 455	$ 26,421	$ 20,920	$ 27,793	$ 26,876	$ 48,713
Less: Net loss (income) attributable to noncontrolling interests in consolidated affiliates	$ (1,499)		$ 2,168		$ (931)	$ 5,167
Denominator:
Denominator for basic earnings per common unit - weighted average units (in units)	135,907,727		129,380,282		132,522,611	129,277,490
Add: Dilutive effect of:
Stock options (in shares/units)	0		13,463		537	16,580
Performance shares,restricted shares and restricted stock units (in shares/units)	49,299		250,170		129,390	403,915
Denominator for diluted earning per common share - adjusted weighted average shares (in shares/units)	135,957,026		129,643,915		132,652,538	129,697,985
Diluted earnings per share attributable to Rayonier, L.P. (in dollars per unit)	$ 0.01		$ 0.14		$ 0.21	$ 0.34