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Debt Narrative - Senior Secured Notes and Revolving Credit Facility - Food Packaging (Details) (USD $) | 12 Months Ended |  |  | 12 Months Ended |  |  | 3 Months Ended |  |  |  |  |  |  | 12 Months Ended
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Dec. 31, 2013 Automotive Segment [Member] Debt Facility [Member] Revolving Credit Facility [Member] | Dec. 31, 2013 Automotive Segment [Member] Debt Facility [Member] Letter of Credit [Member] | Dec. 31, 2012 Automotive Segment [Member] Debt Facility [Member] Letter of Credit [Member] | Dec. 31, 2013 Food Packaging Segment [Member] Secured Debt [Member] Viskase Notes Indenture [Member] | May 31, 2010 Food Packaging Segment [Member] Secured Debt [Member] Viskase Notes Indenture [Member] | Dec. 31, 2009 Food Packaging Segment [Member] Secured Debt [Member] Viskase Senior Secured Notes due 2018 [Member] | Mar. 31, 2014 Food Packaging Segment [Member] Secured Debt [Member] Viskase Senior Secured Notes due 2021 [Member] | Jan. 30, 2014 Food Packaging Segment [Member] Secured Debt [Member] Viskase Senior Secured Notes due 2021 [Member] | Dec. 31, 2012 Food Packaging Segment [Member] Secured Debt [Member] Revolving Credit Facility [Member] | Dec. 31, 2013 Food Packaging Segment [Member] Secured Debt [Member] Letter of Credit [Member] | Dec. 31, 2012 Food Packaging Segment [Member] Secured Debt [Member] Letter of Credit [Member] | Dec. 31, 2013 Food Packaging Segment [Member] Unsecured Debt [Member] Line of Credit [Member] | Dec. 31, 2012 Food Packaging Segment [Member] Unsecured Debt [Member] Line of Credit [Member] | Dec. 31, 2013 Debt repurchase date range, Prior to January 15, 2014 [Member] Food Packaging Segment [Member] Secured Debt [Member] Viskase Notes Indenture [Member]
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit, refinancing indebtedness due, period | 91 days |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount issued, long-term debt |  |  |  |  | $ 40,000,000 | $ 175,000,000 |  | $ 275,000,000 |  |  |  | $ 2,000,000 |  |
Interest rate, long-term debt |  |  |  |  | 9.875% | 9.875% |  |  |  |  |  |  |  |
Redemption percentage of aggregate principal amount authorized to be redeemed at higher percenatge of principal amount |  |  |  | 35.00% |  |  |  |  |  |  |  |  |  |
Redemption percentage of principal amount |  |  |  |  |  |  |  |  |  |  |  |  |  | 109.875%
Percentage of aggregate principal amount required to remain outstanding if debt redeemed at higher percenatge of principal amount |  |  |  | 65.00% |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  | 16,000,000 |  |  |  |  |  |  |
Line of credit facility |  |  |  |  |  |  |  |  |  |  |  | 8,000,000 |  |
Line of credit facility, outstanding borowings |  | 39,000,000 | 37,000,000 |  |  |  |  |  | 0 |  |  |  | 0 |
Letters of Credit Outstanding, Amount |  |  |  |  |  |  |  |  |  | $ 1,000,000 | $ 1,000,000 |  |  |

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