CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
SALES (NOTE 2)	$ 184,800		$ 245,906		$ 376,346	$ 449,101
Costs and Expenses
Cost of sales	(140,454)		(184,418)		(283,705)	(322,906)
Selling and general expenses	(10,984)		(11,502)		(20,794)	(20,504)
Other operating (expense) income, net (Note 16)	(1,969)		1,659		(1,934)	3,029
Costs and Expenses, Total	(153,407)		(194,261)		(306,433)	(340,381)
OPERATING INCOME	31,393		51,645		69,913	108,720
Interest expense	(7,922)		(8,102)		(15,632)	(16,155)
Interest and other miscellaneous income, net	1,057		2,905		2,390	3,525
INCOME BEFORE INCOME TAXES	24,528		46,448		56,671	96,090
Income tax expense (Note 9)	(3,608)		(7,110)		(7,958)	(14,047)
NET INCOME	20,920	$ 27,793	39,338	$ 42,706	48,713	82,043
Less: Net income attributable to noncontrolling interest	(2,168)		(3,080)		(5,167)	(5,246)
NET INCOME ATTRIBUTABLE TO RAYONIER INC.	18,752		36,258		43,546	76,797
OTHER COMPREHENSIVE (LOSS) INCOME
Foreign currency translation adjustment, net of income tax expense of $0, $0, $0 and $0	(5,604)	6,033	(29,760)	9,688	429	(20,072)
Cash flow hedges, net of income tax (benefit) expense of ($91), ($2,008), $244 and ($1,640)	(19,519)	(10,686)	529	16,615	(30,205)	17,143
Amortization of pension and postretirement plans, net of income tax expense of $0, $0, $0 and $0	(112)	$ (112)	(178)	$ (159)	(224)	(338)
Total other comprehensive (loss) income	(25,011)		(29,053)		(29,552)	(2,591)
COMPREHENSIVE (LOSS) INCOME	(4,091)		10,285		19,161	79,452
Less: Comprehensive (income) loss attributable to noncontrolling interest	(815)		5,011		(5,366)	528
COMPREHENSIVE (LOSS) INCOME ATTRIBUTABLE TO RAYONIER INC.	$ (4,906)		$ 15,296		$ 13,795	$ 79,980
EARNINGS PER COMMON SHARE (NOTE 12)
Basic earnings per share attributable to Rayonier Inc. (in dollars per share)	$ 0.14		$ 0.28		$ 0.34	$ 0.60
Diluted earnings per share attributable to Rayonier Inc. (in dollars per share)	$ 0.14		$ 0.28		$ 0.34	$ 0.59