Sale of Wood Products Business Schedule of operating results from discontinued operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Discontinued Operations and Disposal Groups [Abstract]
Sales									$ 16,968	$ 87,510	$ 67,682
Cost of sales and other									(17,102)	(76,619)	(68,682)
Gain on sale of discontinued operations									63,217	0	0
Income (loss) from discontinued operations before income taxes									63,083	10,891	(1,000)
Income tax (expense) benefit									(21,050)	(3,648)	331
Income (loss) from discontinued operations, net	$ (2,444)	$ 0	$ 0	$ 44,477	$ 2,135	$ 1,282	$ 2,988	$ 838	$ 42,033	$ 7,243	$ (669)