Income Taxes Provision for Income Taxes from Discontinued Operations Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Mar. 01, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, tax effect of discontinued operation	$ 21,050,000	$ 3,648,000	$ (331,000)
Wood Products business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Description of proceeds from divestiture of business	$80 million plus a working capital adjustment
Base consideration received				80,000,000
Discontinued operation, tax effect of discontinued operation	22,000,000	3,600,000	(300,000)
Tax effect of gain on sale of discontinued operations	21,100,000
Southern Wood Piedmont Company [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, tax effect of discontinued operation	$ (900,000)