Discontinued Operations - Summary of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense					$ 0	$ (20,578)	$ (106,396)
Income from discontinued operations, net	$ 311	$ 0	$ 12,084	$ 31,008		43,403	267,955
Performance Fibers business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales						456,180	1,048,104
Cost of sales and other						(369,210)	(736,471)
Transaction expenses						(22,989)	(3,208)
Income from discontinued operations before income taxes						63,981	308,425
Income tax expense						(20,578)	(84,398)
Income from discontinued operations, net						43,403	224,027
Wood Products business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales							16,968
Cost of sales and other							(14,258)
Gain on sale of discontinued operations							63,217
Income from discontinued operations before income taxes							65,927
Income tax expense							(21,999)
Income from discontinued operations, net						$ 0	$ 43,928