Consolidating Financial Statements Condensed Consolidating Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2011
CURRENT ASSETS
Cash and cash equivalents	$ 343,581	$ 280,596	$ 189,103	$ 78,603
Accounts receivable, less allowance for doubtful accounts	116,538	100,359
Inventory	99,091	127,966
Deferred Tax Assets, Net, Current	55,563	15,845
Prepaid and other current assets	67,444	41,508
Total current assets	682,217	566,274
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	2,080,611	1,573,309
NET PROPERTY, PLANT AND EQUIPMENT	852,432	707,038
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	72,419
INVESTMENT IN SUBSIDIARIES	0	0
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	212,791	203,911
TOTAL ASSETS	3,828,051	3,122,951
CURRENT LIABILITIES
Accounts payable	133,255	70,381
Current maturities of long-term debt	75,463	150,000
Accrued taxes	20,158	13,824
Accrued payroll and benefits	20,489	28,068
Accrued interest	9,835	7,956
Accrued customer incentives	10,743	10,849
Other current liabilities	51,842	18,640
Current liabilities for dispositions and discontinued operations	8,686	8,105
Total current liabilities	330,471	307,823
LONG-TERM DEBT	1,591,834	1,120,052
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	69,442	73,590
PENSION AND OTHER POSTRETIREMENT BENEFITS	158,594	159,582
OTHER NON-CURRENT LIABILITIES	27,590	23,900
INTERCOMPANY PAYABLE	0	0
Stockholders' Equity Attributable to Parent	1,563,539	1,438,004
Noncontrolling interest	86,581	0
TOTAL SHAREHOLDERS’ EQUITY	1,650,120	1,438,004		1,323,073
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	3,828,051	3,122,951
Parent Company [Member]
CURRENT ASSETS
Cash and cash equivalents	170,442	252,888	97,335	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	0	0
Total current assets	170,442	252,888
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
INVESTMENT IN SUBSIDIARIES	1,575,156	1,445,205
INTERCOMPANY NOTES RECEIVABLE	217,073	213,863
OTHER ASSETS	3,928	4,148
TOTAL ASSETS	1,966,599	1,916,104
CURRENT LIABILITIES
Accounts payable	0	0
Current maturities of long-term debt	75,000	150,000
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	3,060	3,100
Accrued customer incentives	0	0
Other current liabilities	0	0
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	78,060	153,100
LONG-TERM DEBT	325,000	325,000
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	0	0
Stockholders' Equity Attributable to Parent	1,563,539
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	1,563,539	1,438,004
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,966,599	1,916,104
Senior Exchangeable Notes due 2015 [Member] [Domain] | Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents	6,449	3,966	35,503	8,977
Accounts receivable, less allowance for doubtful accounts	15	386
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	2,136	1,566
Total current assets	8,600	5,918
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	2,217	2,321
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0
INVESTMENT IN SUBSIDIARIES	1,696,714	1,677,782
INTERCOMPANY NOTES RECEIVABLE	0	14,000
OTHER ASSETS	30,171	27,779
TOTAL ASSETS	1,737,702	1,727,800
CURRENT LIABILITIES
Accounts payable	1,129	2,099
Current maturities of long-term debt	0	0
Accrued taxes	2,603	485
Accrued payroll and benefits	10,689	15,044
Accrued interest	538	379
Accrued customer incentives	0	0
Other current liabilities	3,189	2,925
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	18,148	20,932
LONG-TERM DEBT	0	0
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	130,244	129,156
OTHER NON-CURRENT LIABILITIES	13,989	16,432
INTERCOMPANY PAYABLE	165	116,075
Stockholders' Equity Attributable to Parent	1,575,156
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	1,575,156	1,445,205
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,737,702	1,727,800
Senior Exchangeable Notes due 2015 [Member] [Domain] | Subsidiary Issuer [Member]
CURRENT ASSETS
Cash and cash equivalents	26,790	19,358	15,197	59,976
Accounts receivable, less allowance for doubtful accounts	892	0
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	639	691
Total current assets	28,321	20,049
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0
INVESTMENT IN SUBSIDIARIES	1,037,668	1,452,027
INTERCOMPANY NOTES RECEIVABLE	20,166	19,831
OTHER ASSETS	4,513	5,182
TOTAL ASSETS	1,090,668	1,497,089
CURRENT LIABILITIES
Accounts payable	505	33
Current maturities of long-term debt	0	0
Accrued taxes	0	0
Accrued payroll and benefits	0	0
Accrued interest	3,753	3,197
Accrued customer incentives	0	0
Other current liabilities	0	0
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	4,258	3,230
LONG-TERM DEBT	979,511	718,321
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	0	0
Stockholders' Equity Attributable to Parent	106,899
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	106,899	775,538
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	1,090,668	1,497,089
Senior Exchangeable Notes due 2015 [Member] [Domain] | Non-Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents	139,900	4,384	41,068	9,650
Accounts receivable, less allowance for doubtful accounts	115,631	99,973
Inventory	99,091	127,966
Deferred Tax Assets, Net, Current	55,563	15,845
Prepaid and other current assets	64,669	39,251
Total current assets	474,854	287,419
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	2,080,611	1,573,309
NET PROPERTY, PLANT AND EQUIPMENT	850,215	704,717
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		72,419
INVESTMENT IN SUBSIDIARIES	0	0
INTERCOMPANY NOTES RECEIVABLE	0	0
OTHER ASSETS	174,179	166,802
TOTAL ASSETS	3,579,859	2,804,666
CURRENT LIABILITIES
Accounts payable	131,621	68,249
Current maturities of long-term debt	463	0
Accrued taxes	17,555	13,339
Accrued payroll and benefits	9,800	13,024
Accrued interest	2,484	1,280
Accrued customer incentives	10,743	10,849
Other current liabilities	48,653	15,715
Current liabilities for dispositions and discontinued operations	8,686	8,105
Total current liabilities	230,005	130,561
LONG-TERM DEBT	287,323	76,731
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	69,442	73,590
PENSION AND OTHER POSTRETIREMENT BENEFITS	28,350	30,426
OTHER NON-CURRENT LIABILITIES	13,601	7,468
INTERCOMPANY PAYABLE	265,823	137,797
Stockholders' Equity Attributable to Parent	2,598,734
Noncontrolling interest	86,581
TOTAL SHAREHOLDERS’ EQUITY	2,685,315	2,348,093
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	3,579,859	2,804,666
Senior Exchangeable Notes due 2015 [Member] [Domain] | Consolidation, Eliminations [Member]
CURRENT ASSETS
Cash and cash equivalents	0	0	0	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	0	0
Total current assets	0	0
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		0
INVESTMENT IN SUBSIDIARIES	(4,309,538)	(4,575,014)
INTERCOMPANY NOTES RECEIVABLE	(237,239)	(247,694)
OTHER ASSETS	0	0
TOTAL ASSETS	(4,546,777)	(4,822,708)
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	0	0
Accrued customer incentives	0	0
Other current liabilities	0	0
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	0	0
LONG-TERM DEBT	0	0
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	(265,988)	(253,872)
Stockholders' Equity Attributable to Parent	(4,280,789)
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	(4,280,789)	(4,568,836)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	(4,546,777)	(4,822,708)
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents	33,239	23,324	50,700	68,953
Accounts receivable, less allowance for doubtful accounts	907	386
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	2,775	2,257
Total current assets	36,921	25,967
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	2,217	2,321
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
INVESTMENT IN SUBSIDIARIES	2,627,483	2,354,270
INTERCOMPANY NOTES RECEIVABLE	20,166	33,831
OTHER ASSETS	34,684	32,961
TOTAL ASSETS	2,721,471	2,449,350
CURRENT LIABILITIES
Accounts payable	1,634	2,132
Current maturities of long-term debt	0	0
Accrued taxes	2,603	485
Accrued payroll and benefits	10,689	15,044
Accrued interest	4,291	3,576
Accrued customer incentives	0	0
Other current liabilities	3,189	2,925
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	22,406	24,162
LONG-TERM DEBT	979,511	718,321
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	130,244	129,156
OTHER NON-CURRENT LIABILITIES	13,989	16,432
INTERCOMPANY PAYABLE	165	116,074
Stockholders' Equity Attributable to Parent	1,575,156
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	1,575,156	1,445,205
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	2,721,471	2,449,350
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | Non-Guarantor Subsidiaries [Member]
CURRENT ASSETS
Cash and cash equivalents		4,384	41,068	9,650
Accounts receivable, less allowance for doubtful accounts		99,973
Inventory		127,966
Deferred Tax Assets, Net, Current		15,845
Prepaid and other current assets		39,251
Total current assets		287,419
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION		1,573,309
NET PROPERTY, PLANT AND EQUIPMENT		704,717
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures		72,419
INVESTMENT IN SUBSIDIARIES		0
INTERCOMPANY NOTES RECEIVABLE		0
OTHER ASSETS		166,802
TOTAL ASSETS		2,804,666
CURRENT LIABILITIES
Accounts payable		68,249
Current maturities of long-term debt		0
Accrued taxes		13,339
Accrued payroll and benefits		13,024
Accrued interest		1,280
Accrued customer incentives		10,849
Other current liabilities		15,715
Current liabilities for dispositions and discontinued operations		8,105
Total current liabilities		130,561
LONG-TERM DEBT		76,731
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS		73,590
PENSION AND OTHER POSTRETIREMENT BENEFITS		30,426
OTHER NON-CURRENT LIABILITIES		7,468
INTERCOMPANY PAYABLE		137,797
TOTAL SHAREHOLDERS’ EQUITY		2,348,093
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY		2,804,666
Senior Notes due 2022 at a fixed interest rate of 3.75% [Member] | Consolidation, Eliminations [Member]
CURRENT ASSETS
Cash and cash equivalents	0	0	0	0
Accounts receivable, less allowance for doubtful accounts	0	0
Inventory	0	0
Deferred Tax Assets, Net, Current	0	0
Prepaid and other current assets	0	0
Total current assets	0	0
TIMBER AND TIMBERLANDS, NET OF DEPLETION AND AMORTIZATION	0	0
NET PROPERTY, PLANT AND EQUIPMENT	0	0
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	0	0
INVESTMENT IN SUBSIDIARIES	(4,202,639)	(3,799,475)
INTERCOMPANY NOTES RECEIVABLE	(237,239)	(247,694)
OTHER ASSETS	0	0
TOTAL ASSETS	(4,439,878)	(4,047,169)
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	0	0
Accrued customer incentives	0	0
Other current liabilities	0	0
Current liabilities for dispositions and discontinued operations	0	0
Total current liabilities	0	0
LONG-TERM DEBT	0	0
NON-CURRENT LIABILITIES FOR DISPOSITIONS AND DISCONTINUED OPERATIONS	0	0
PENSION AND OTHER POSTRETIREMENT BENEFITS	0	0
OTHER NON-CURRENT LIABILITIES	0	0
INTERCOMPANY PAYABLE	(265,988)	(253,871)
Stockholders' Equity Attributable to Parent	(4,173,890)
Noncontrolling interest	0
TOTAL SHAREHOLDERS’ EQUITY	(4,173,890)	(3,793,298)
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ (4,439,878)	$ (4,047,169)