CONSOLIDATING FINANCIAL STATEMENTS - Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
CURRENT ASSETS
Cash and cash equivalents	$ 91,632	$ 161,558	$ 222,061	$ 199,644
Accounts receivable, less allowance for doubtful accounts	19,444	24,018
Inventory	13,362	8,383
Prepaid and other current assets	21,222	19,745
Total current assets	145,660	213,704
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	2,086,729	2,088,501
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	69,726	77,433
NET PROPERTY, PLANT AND EQUIPMENT	6,434	6,706
INVESTMENT IN SUBSIDIARIES	0	0
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	57,772	66,771
TOTAL ASSETS	2,366,321	2,453,115
CURRENT LIABILITIES
Accounts payable	22,396	20,211
Current maturities of long-term debt	30,000	129,706
Accrued taxes	15,811	11,405
Accrued payroll and benefits	4,596	6,390
Accrued interest	8,043	8,433
Other current liabilities	31,614	25,857
Total current liabilities	112,460	202,002
LONG-TERM DEBT	722,353	621,849
PENSION AND OTHER POSTRETIREMENT BENEFITS	33,396	33,477
OTHER NON-CURRENT LIABILITIES	20,840	20,636
INTERCOMPANY PAYABLE	0	0
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	1,404,113	1,488,470
Noncontrolling interest	73,159	86,681
TOTAL SHAREHOLDERS’ EQUITY	1,477,272	1,575,151		1,755,243
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	2,366,321	2,453,115
Rayonier Inc. (Parent Guarantor) [Member]
CURRENT ASSETS
Cash and cash equivalents	5,366	102,218	39,181	130,181
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Prepaid and other current assets	0	0
Total current assets	5,366	102,218
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
INVESTMENT IN SUBSIDIARIES	1,516,408	1,463,303
INTERCOMPANY NOTES RECEIVABLE	252,815	248,233
OTHER ASSETS	2,570	2,763
TOTAL ASSETS	1,777,159	1,816,517
CURRENT LIABILITIES
Accounts payable	0	0
Current maturities of long-term debt	0	0
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	3,046	3,047
Other current liabilities	0	0
Total current liabilities	3,046	3,047
LONG-TERM DEBT	370,000	325,000
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	0	0
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	1,404,113	1,488,470
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	1,404,113	1,488,470
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	1,777,159	1,816,517
Senior Exchangeable Notes due August 2015 at a fixed interest rate of 4.50% [Member] | ROC (Subsidiary Guarantor) [Member]
CURRENT ASSETS
Cash and cash equivalents	94	11	1,096	304
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Prepaid and other current assets	1,855	2,003
Total current assets	1,949	2,014
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	480	433
INVESTMENT IN SUBSIDIARIES	2,182,721	1,923,185
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	16,476	16,610
TOTAL ASSETS	2,201,626	1,942,242
CURRENT LIABILITIES
Accounts payable	3,434	2,687
Current maturities of long-term debt	0	0
Accrued taxes	14	11
Accrued payroll and benefits	2,476	3,253
Accrued interest	(12)	(3)
Other current liabilities	2,420	928
Total current liabilities	8,332	6,876
LONG-TERM DEBT	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	34,081	34,161
OTHER NON-CURRENT LIABILITIES	6,615	6,436
INTERCOMPANY PAYABLE	636,190	431,466
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	1,516,408	1,463,303
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	1,516,408	1,463,303
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	2,201,626	1,942,242
Senior Exchangeable Notes due August 2015 at a fixed interest rate of 4.50% [Member] | Subsidiary Issuer [Member]
CURRENT ASSETS
Cash and cash equivalents	45,847	8,094	66,866	10,719
Accounts receivable, less allowance for doubtful accounts	91	1,409
Inventory	0	0
Prepaid and other current assets	3,008	6
Total current assets	48,946	9,509
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
INVESTMENT IN SUBSIDIARIES	843,077	640,678
INTERCOMPANY NOTES RECEIVABLE	21,928	21,500
OTHER ASSETS	1,325	1,759
TOTAL ASSETS	915,276	673,446
CURRENT LIABILITIES
Accounts payable	83	123
Current maturities of long-term debt	30,000	129,706
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	2,505	2,520
Other current liabilities	9,570	145
Total current liabilities	42,158	132,494
LONG-TERM DEBT	115,972	31,000
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	0	0
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	757,146	509,952
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	757,146	509,952
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	915,276	673,446
Senior Exchangeable Notes due August 2015 at a fixed interest rate of 4.50% [Member] | Non-guarantors [Member]
CURRENT ASSETS
Cash and cash equivalents	40,325	51,235	114,918	58,440
Accounts receivable, less allowance for doubtful accounts	19,353	22,609
Inventory	13,362	8,383
Prepaid and other current assets	16,359	17,736
Total current assets	89,399	99,963
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	2,086,729	2,088,501
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	69,726	77,433
NET PROPERTY, PLANT AND EQUIPMENT	5,954	6,273
INVESTMENT IN SUBSIDIARIES	0	0
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	37,401	45,639
TOTAL ASSETS	2,289,209	2,317,809
CURRENT LIABILITIES
Accounts payable	18,879	17,401
Current maturities of long-term debt	0	0
Accrued taxes	15,797	11,394
Accrued payroll and benefits	2,120	3,137
Accrued interest	35,499	31,281
Other current liabilities	19,624	24,784
Total current liabilities	91,919	87,997
LONG-TERM DEBT	236,381	265,849
PENSION AND OTHER POSTRETIREMENT BENEFITS	(685)	(684)
OTHER NON-CURRENT LIABILITIES	14,225	14,200
INTERCOMPANY PAYABLE	(254,315)	(153,754)
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	2,128,525	2,017,520
Noncontrolling interest	73,159	86,681
TOTAL SHAREHOLDERS’ EQUITY	2,201,684	2,104,201
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	2,289,209	2,317,809
Senior Exchangeable Notes due August 2015 at a fixed interest rate of 4.50% [Member] | Consolidation Adjustments [Member]
CURRENT ASSETS
Cash and cash equivalents	0	0	0	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Prepaid and other current assets	0	0
Total current assets	0	0
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
INVESTMENT IN SUBSIDIARIES	(4,542,206)	(4,027,166)
INTERCOMPANY NOTES RECEIVABLE	(274,743)	(269,733)
OTHER ASSETS	0	0
TOTAL ASSETS	(4,816,949)	(4,296,899)
CURRENT LIABILITIES
Accounts payable	0	0
Current maturities of long-term debt	0	0
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	(32,995)	(28,412)
Other current liabilities	0	0
Total current liabilities	(32,995)	(28,412)
LONG-TERM DEBT	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	(381,875)	(277,712)
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	(4,402,079)	(3,990,775)
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	(4,402,079)	(3,990,775)
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	(4,816,949)	(4,296,899)
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | ROC (Subsidiary Guarantor) [Member]
CURRENT ASSETS
Cash and cash equivalents	45,941	8,105	67,962	11,023
Accounts receivable, less allowance for doubtful accounts	91	1,409
Inventory	0	0
Prepaid and other current assets	4,863	2,009
Total current assets	50,895	11,523
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	480	433
INVESTMENT IN SUBSIDIARIES	2,268,652	2,053,911
INTERCOMPANY NOTES RECEIVABLE	21,928	21,500
OTHER ASSETS	17,801	18,369
TOTAL ASSETS	2,359,756	2,105,736
CURRENT LIABILITIES
Accounts payable	3,517	2,810
Current maturities of long-term debt	30,000	129,706
Accrued taxes	14	11
Accrued payroll and benefits	2,476	3,253
Accrued interest	2,493	2,517
Other current liabilities	11,990	1,073
Total current liabilities	50,490	139,370
LONG-TERM DEBT	115,972	31,000
PENSION AND OTHER POSTRETIREMENT BENEFITS	34,081	34,161
OTHER NON-CURRENT LIABILITIES	6,615	6,436
INTERCOMPANY PAYABLE	636,190	431,466
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	1,516,408	1,463,303
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	1,516,408	1,463,303
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	2,359,756	2,105,736
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | Non-guarantors [Member]
CURRENT ASSETS
Cash and cash equivalents	40,325	51,235	114,918	58,440
Accounts receivable, less allowance for doubtful accounts	19,353	22,609
Inventory	13,362	8,383
Prepaid and other current assets	16,359	17,736
Total current assets	89,399	99,963
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	2,086,729	2,088,501
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	69,726	77,433
NET PROPERTY, PLANT AND EQUIPMENT	5,954	6,273
INVESTMENT IN SUBSIDIARIES	0	0
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	37,401	45,639
TOTAL ASSETS	2,289,209	2,317,809
CURRENT LIABILITIES
Accounts payable	18,879	17,401
Current maturities of long-term debt	0	0
Accrued taxes	15,797	11,394
Accrued payroll and benefits	2,120	3,137
Accrued interest	35,499	31,281
Other current liabilities	19,624	24,784
Total current liabilities	91,919	87,997
LONG-TERM DEBT	236,381	265,849
PENSION AND OTHER POSTRETIREMENT BENEFITS	(685)	(684)
OTHER NON-CURRENT LIABILITIES	14,225	14,200
INTERCOMPANY PAYABLE	(254,315)	(153,754)
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	2,128,525	2,017,520
Noncontrolling interest	73,159	86,681
TOTAL SHAREHOLDERS’ EQUITY	2,201,684	2,104,201
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	2,289,209	2,317,809
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | Consolidation Adjustments [Member]
CURRENT ASSETS
Cash and cash equivalents	0	0	$ 0	$ 0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Prepaid and other current assets	0	0
Total current assets	0	0
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
HIGHER AND BETTER USE TIMBERLANDS AND REAL ESTATE DEVELOPMENT COSTS	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
INVESTMENT IN SUBSIDIARIES	(3,785,060)	(3,517,214)
INTERCOMPANY NOTES RECEIVABLE	(274,743)	(269,733)
OTHER ASSETS	0	0
TOTAL ASSETS	(4,059,803)	(3,786,947)
CURRENT LIABILITIES
Accounts payable	0	0
Current maturities of long-term debt	0	0
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	(32,995)	(28,412)
Other current liabilities	0	0
Total current liabilities	(32,995)	(28,412)
LONG-TERM DEBT	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	(381,875)	(277,712)
TOTAL RAYONIER INC. SHAREHOLDERS’ EQUITY	(3,644,933)	(3,480,823)
Noncontrolling interest	0	0
TOTAL SHAREHOLDERS’ EQUITY	(3,644,933)	(3,480,823)
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ (4,059,803)	$ (3,786,947)