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Income Taxes (Tables) | 6 Months Ended
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Jun. 30, 2013
Income Tax Disclosure [Abstract] |
Major Jurisdictions | The following are the major jurisdictions in which Ambac and its affiliates operate and the earliest tax years subject to examination:
Jurisdiction |  | Tax Year |
United States |  |  | 2010 |
New York State |  |  | 2008 |
New York City |  |  | 2011 |
United Kingdom |  |  | 2006 |
Italy |  |  | 2007 |
Significant Portions of Deferred Tax Liabilities and Deferred Tax Assets | The tax effects of temporary differences that give rise to significant portions of the deferred tax liabilities and deferred tax assets at June 30, 2013 and December 31, 2012 are presented below:
|  | Successor Ambac – June 30, 2013 |  |  | Predecessor Ambac – December 31, 2012 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Insurance intangible |  | $ | 567,564 |  |  | $ | — |
Variable interest entities |  |  | — |  |  |  | 22,015 |
Deferred acquisition costs |  |  | — |  |  |  | 57,262 |
Unearned premiums and credit fees |  |  | 6,165 |  |  |  | 22,714 |
Unrealized gains on investments |  |  | 4,041 |  |  |  | — |
Other |  |  | 1,907 |  |  |  | 17,251 |
Total deferred tax liabilities |  |  | 579,677 |  |  |  | 119,242 |
Deferred tax assets: |  |  |  |  |  |  |  |
Variable interest entities |  |  | 59,710 |  |  |  | — |
Unrealized losses & impairments on investments |  |  | — |  |  |  | 12,605 |
Net operating loss and capital carryforward |  |  | 2,137,334 |  |  |  | 2,857,926 |
Loss reserves |  |  | 833,823 |  |  |  | 490,677 |
Compensation |  |  | 7,876 |  |  |  | 7,184 |
Other |  |  | 3,012 |  |  |  | 5,687 |
Sub-total deferred tax assets |  |  | 3,041,755 |  |  |  | 3,374,079 |
Valuation allowance |  |  | 2,463,642 |  |  |  | 3,256,423 |
Total deferred tax assets |  |  | 578,113 |  |  |  | 117,656 |
Net deferred tax liability |  | $ | (1,564 | ) |  | $ | (1,586 | )

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- Definition Schedule of tax years subject to examination by major jurisdictions. + References No definition available. + Details
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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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