Discontinued Operations - Interest Expense Allocated to Discontinued Operations (Details) $ in Thousands	12 Months Ended
Dec. 31, 2014 USD ($)
Performance Fibers business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Interest expense allocated to the Performance Fibers business	$ (4,205)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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