MERGER WITH POPE RESOURCES - Schedule of Unaudited Pro Forma Information (Details) - Merger with Pope Resources - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Sales	$ 890,400	$ 821,500
Net income (loss)	$ 36,819	$ 26,927
Basic earnings (loss) per share/unit (in dollars per share/unit)	$ 0.27	$ 0.20
Diluted earnings (loss) per share/unit (in dollars per share/unit)	$ 0.27	$ 0.20
Rayonier Limited Partnership
Business Acquisition [Line Items]
Net income (loss)	$ 38,032	$ 27,804
Basic earnings (loss) per share/unit (in dollars per share/unit)	$ 0.27	$ 0.20
Diluted earnings (loss) per share/unit (in dollars per share/unit)	$ 0.27	$ 0.20