Segment Information (Summary Of Information By Business Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Segment Reporting Information [Line Items]
Segment Revenues	$ 126,175	$ 119,915	$ 248,717	$ 252,920
Total consolidated revenues	117,540	112,370	229,924	234,603
Operating Income	10,813	11,148	16,846	20,427
Depreciation, depletion and amortization	5,181	5,158	10,969	13,824
Basis of real estate sold	798	6,958	1,242	10,573
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Income	25,834	23,288	46,169	49,154
Depreciation, depletion and amortization	4,447	4,511	9,534	11,313
Resource [Member]
Segment Reporting Information [Line Items]
Segment Revenues	33,888	34,265	74,342	85,817
Elimination of intersegment revenues	(8,635)	(7,545)	(18,793)	(18,317)
Operating Income	6,711	7,549	15,380	21,610
Depreciation, depletion and amortization	2,792	2,514	6,010	7,332
Real Estate [Member]
Segment Reporting Information [Line Items]
Segment Revenues	8,664	19,018	16,828	31,999
Operating Income	6,689	11,000	13,001	19,366
Depreciation, depletion and amortization	9	0	18	0
Basis of real estate sold	914	6,958	1,409	10,573
Wood Products [Member]
Segment Reporting Information [Line Items]
Segment Revenues	83,623	66,632	157,547	135,104
Operating Income	11,672	2,758	16,716	5,652
Depreciation, depletion and amortization	1,646	1,997	3,506	3,981
Eliminations and Adjustments [Member]
Segment Reporting Information [Line Items]
Operating Income	762	1,981	1,072	2,526
Basis of real estate sold	116	0	167	0
Corporate [Member]
Segment Reporting Information [Line Items]
Operating Income	(15,021)	(12,140)	(29,323)	(28,727)
Depreciation, depletion and amortization	$ 734	$ 647	$ 1,435	$ 2,511