Segment Information (Summary Of Information By Business Segment) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Segment Revenues		$ 128,747	$ 143,919	$ 262,872	$ 283,498
Operating Income		(705)	24,216	5,253	50,065
Operating Income (Loss)		7,311	29,725	21,338	61,034
Interest Expense		(8,016)	(5,509)	(16,085)	(10,969)
Depreciation, depletion and amortization	[1]	7,093	4,898	15,597	11,002
Basis of real estate sold		600	2,212	1,008	6,834
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Revenues		139,047	155,821	285,346	309,969
Operating Income		15,904	38,854	38,956	76,898
Depreciation, depletion and amortization	[1]	6,473	4,257	14,318	9,717
Resource [Member]
Segment Reporting Information [Line Items]
Segment Revenues		44,111	39,512	98,066	91,417
Operating Income		8,797	10,818	23,775	27,042
Depreciation, depletion and amortization	[1]	4,797	2,728	11,051	6,644
Wood Products [Member]
Segment Reporting Information [Line Items]
Segment Revenues		84,191	100,572	173,424	188,376
Operating Income		(1,953)	14,870	1,547	27,577
Depreciation, depletion and amortization	[1]	1,661	1,515	3,237	3,044
Real Estate [Member]
Segment Reporting Information [Line Items]
Segment Revenues		10,745	15,737	13,856	30,176
Operating Income		8,521	12,378	10,120	20,649
Depreciation, depletion and amortization	[1]	15	14	30	29
Basis of real estate sold		710	2,242	1,181	7,409
Eliminations and Adjustments [Member]
Segment Reporting Information [Line Items]
Segment Revenues		(10,300)	(11,902)	(22,474)	(26,471)
Operating Income		539	788	3,514	1,630
Corporate [Member]
Segment Reporting Information [Line Items]
Operating Income		(8,593)	(9,129)	(17,618)	(15,864)
Depreciation, depletion and amortization	[1]	620	641	1,279	1,285
Basis of Real Estate Sold Eliminations and Adjustments [Member]
Segment Reporting Information [Line Items]
Basis of real estate sold		$ (110)	$ (30)	$ (173)	$ (575)

[1] The presentation of depreciation, depletion and amortization in Segment Information and the Condensed Consolidated Statements of Cash Flows includes amortization of bond discounts and deferred loan fees. Bond discounts and deferred loan fees are recorded in Interest expense, net in the Consolidated Statements of Income.