Segment Information (Summary Of Information By Business Segment) (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information [Line Items]
Segment Revenues		$ 149,681	$ 127,896
Operating income		23,909	5,072
Interest expense, net		(4,970)	(6,025)
Income (loss) before income taxes		18,939	(953)
Depreciation, depletion and amortization		6,702	8,605
Bond discounts and deferred loan fees		373	366
Basis of real estate sold		4,790	2,034
Operating Segments [Member]
Segment Reporting Information [Line Items]
Segment Revenues		161,864	137,514
Operating income		33,315	14,703
Depreciation, depletion and amortization		6,212	8,031
Operating Segments [Member] | Resource [Member]
Segment Reporting Information [Line Items]
Segment Revenues		51,768	48,710
Operating income		14,929	10,207
Depreciation, depletion and amortization		4,384	6,128
Operating Segments [Member] | Wood Products [Member]
Segment Reporting Information [Line Items]
Segment Revenues		95,592	83,238
Operating income		8,684	956
Depreciation, depletion and amortization		1,827	1,901
Operating Segments [Member] | Real Estate [Member]
Segment Reporting Information [Line Items]
Segment Revenues		14,504	5,566
Operating income		8,643	2,075
Depreciation, depletion and amortization		1	2
Basis of real estate sold		4,809	2,245
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Segment Revenues	[1]	(12,183)	(9,618)
Operating income		1,059	1,465
Basis of real estate sold		(19)	(211)
Corporate [Member]
Segment Reporting Information [Line Items]
Operating income		(9,406)	(9,631)
Depreciation, depletion and amortization		$ 117	$ 208

[1] Intersegment revenues are based on prevailing market prices of logs sold by our Resource segment to the Wood Products segment.