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Fresh Start Accounting - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
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Dec. 31, 2013 | Mar. 19, 2012
Statement Of Financial Position [Abstract] |  |
Minimum percentage of shares held by voter before confirmation of reorganization | 50.00% |
Company's reorganization value |  | $ 76.6
Amount of cash used for Plan-related liabilities | 76.6 |
Loss contract fair market value reserve |  | $ 63.1

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- Definition Amount attributed to the reconstituted entity, as well as the expected net realizable value of those assets that will be disposed before reconstitution occurs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reorganization Value -URI http://asc.fasb.org/extlink&oid=29635974 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=29642632&loc=d3e56426-112766 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 05 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=6458260&loc=d3e54813-112758 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=29642632&loc=d3e56239-112766 + Details
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