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Fresh Start Financial Statement Reporting - Schedule of Liabilities Subject to Compromise (Detail) (Predecessor Ambac [Member], USD $) In Thousands, unless otherwise specified | Apr. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Predecessor Ambac [Member] |  |
Fresh-Start Adjustment [Line Items] |  |
Debt obligations and accrued interest payable |  | $ 1,690,312
Other |  | 14,592
Consolidated liabilities subject to compromise | 1,704,641 | 1,704,904
Payable to non-debtor subsidiaries |  | 35
Debtor's Liabilities subject to compromise |  | $ 1,704,939

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- Definition Liabilities subject to compromise payable to non-debtor subsidiaries. + References No definition available. + Details
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- Definition Total amount of liabilities subject to compromise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=29642632&loc=d3e56145-112766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6916575&loc=d3e55717-112764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6918054&loc=d3e56015-112765 + Details
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- Definition The amount of debt and related accrued interest included in liabilities subject to compromise. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=29642632&loc=d3e56145-112766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6916575&loc=d3e55717-112764 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6918054&loc=d3e56015-112765 + Details
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