Segment Information (Summary Of Information By Business Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2014		Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013		Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Number of Reportable Segments											3
Segment Revenues	$ 146,237		$ 177,215	$ 143,919	$ 139,579	$ 139,955		$ 157,869	$ 133,212	$ 139,253	$ 606,950		$ 570,289		$ 525,134
Operating Income											109,597		84,466		59,403
Operating Income	26,603		44,869	29,725	31,309	20,645		30,904	29,441	26,608	132,506		107,598		84,942
Interest expense, net											(22,909)		(23,132)		(25,539)
Depreciation, depletion and amortization											26,749		26,962		26,247
Basis of real estate sold											8,646		2,904		5,048
Assets	1,035,421					680,530					1,035,421		680,530		718,897
Capital Expenditures											24,232	[1]	22,593	[1]	17,410	[1]
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Revenues											669,280		630,403		575,488
Operating Income											164,173		149,676		121,994
Depreciation, depletion and amortization											24,082		24,353		23,020
Assets	966,547					592,292					966,547		592,292		577,461
Capital Expenditures											23,667	[1]	21,462	[1]	16,565	[1]
Resource [Member]
Segment Reporting Information [Line Items]
Segment Revenues											252,581		238,228		207,846
Operating Income											84,976		73,425		49,543
Depreciation, depletion and amortization											17,847		18,103		16,446
Real Estate [Member]
Segment Reporting Information [Line Items]
Segment Revenues											40,460		26,160		38,238
Operating Income											26,945		18,266		28,056
Depreciation, depletion and amortization											59		56		36
Basis of real estate sold											9,355		3,536		5,413
Resource and Real Estate [Member]
Segment Reporting Information [Line Items]
Assets	847,873	[2]				476,628	[2]				847,873	[2]	476,628	[2]	477,271	[2]
Capital Expenditures											11,116	[1]	12,449	[1]	12,138	[1]
Wood Products [Member]
Segment Reporting Information [Line Items]
Segment Revenues											376,239		366,015		329,404
Operating Income											52,442		58,892		45,456
Depreciation, depletion and amortization											6,176		6,194		6,538
Assets	118,674					115,664					118,674		115,664		100,190
Capital Expenditures											12,551	[1]	9,013	[1]	4,427	[1]
Eliminations and Adjustments [Member]
Segment Reporting Information [Line Items]
Segment Revenues											(62,330)	[3]	(60,114)	[3]	(50,354)	[3]
Operating Income											(190)		(907)		(1,061)
Basis of real estate sold											(709)		(632)		(365)
Corporate Elimination [Member]
Segment Reporting Information [Line Items]
Operating Income											(31,667)		(42,078)		(37,052)
Depreciation, depletion and amortization											2,667		2,609		3,227
Assets	68,874					88,238					68,874		88,238		141,436
Capital Expenditures											$ 565	[1]	$ 1,131	[1]	$ 845	[1]

[1] Excludes acquisition of timber and timberlands.

[2] Assets are shown on a combined basis for the Resource and Real Estate segments, as we do not produce information separately for those segments for internal purposes.

[3] ntersegment revenues for 2012-2014, which were based on prevailing market prices, consisted of logs sold by our Resource segment to the Wood Products segment.