Discontinued Operations - Major Classes of Performance Fibers Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Jun. 27, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Inventory	$ 9,042	[1]	$ 138,818	[1]
Property, plant and equipment, net	6,706		860,821
TOTAL ASSETS	2,453,115		3,685,501
Other current liabilities	25,857		24,327
Long-term debt	751,555		1,574,224
Non-current environmental liabilities	0		69,543		73,590
PENSION AND OTHER POSTRETIREMENT BENEFITS	33,477		95,654
Other non-current liabilities	20,636		27,225
Deficit	790,697		1,015,209
Total liabilities and equity	2,453,115		3,685,501
Performance Fibers business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net						66,050
Inventory			128,200			121,705
Prepaid and other current assets						70,092
Property, plant and equipment, net						862,487
Other assets						103,400
TOTAL ASSETS						1,223,734
Accounts payable						65,522
Other current liabilities						51,006
Long-term debt						950,000
Non-current environmental liabilities						66,434
PENSION AND OTHER POSTRETIREMENT BENEFITS						102,633
Other non-current liabilities						7,269
Deficit						(19,130)
Total liabilities and equity						$ 1,223,734

[1] 2013 includes $128.2 million of inventory related to the Performance Fibers business.