DISCONTINUED OPERATIONS - Summary of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income tax expense	$ 0	$ (5,966)	$ 0	$ (21,231)
Income from discontinued operations, net	$ 0	12,084	$ 0	43,092
Performance Fibers business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales		212,680		456,180
Cost of sales and other		(174,961)		(368,868)
Transaction expenses		(19,669)		(22,989)
Income from discontinued operations before income taxes		18,050		64,323
Income tax expense		(5,966)		(21,231)
Income from discontinued operations, net		$ 12,084		$ 43,092