DISCONTINUED OPERATIONS - Summary of Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense	$ 0	$ (15,308)
Income from discontinued operations, net	0	31,008
Performance Fibers business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales		243,499
Cost of sales and other		(193,864)
Transaction expenses		(3,319)
Income from discontinued operations before income taxes		46,316
Income tax expense		(15,308)
Income from discontinued operations, net		$ 31,008