XML 55 R87.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value Measurements - Summary of Carrying Amount and Fair Value of Ambac's Financial Assets and Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2013
Successor Ambac [Member]
Apr. 30, 2013
Successor Ambac [Member]
Dec. 31, 2013
Successor Ambac [Member]
Variable Interest Entity [Member]
Apr. 30, 2013
Successor Ambac [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Total Fair Value [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Total Fair Value [Member]
Futures Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Total Fair Value [Member]
Credit Derivatives [Member]
Dec. 31, 2013
Successor Ambac [Member]
Total Fair Value [Member]
Other Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Carrying Amount [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Carrying Amount [Member]
Futures Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Carrying Amount [Member]
Credit Derivatives [Member]
Dec. 31, 2013
Successor Ambac [Member]
Carrying Amount [Member]
Other Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Assets [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Assets [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Futures Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Credit Derivatives [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Other Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Futures Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Credit Derivatives [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Other Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Futures Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Credit Derivatives [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Other Contracts [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Municipal Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Municipal Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Municipal Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Municipal Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Municipal Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Total Fair Value [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Carrying Amount [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 1 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 2 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Corporate Obligations [Member]
Level 3 [Member]
Variable Interest Entity [Member]
Dec. 31, 2013
Successor Ambac [Member]
Foreign Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Foreign Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Foreign Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Foreign Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Foreign Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Government Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Government Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Government Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Government Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Government Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Agency Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Agency Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Agency Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Agency Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
U.S. Agency Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Collateralized Debt Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Collateralized Debt Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Commercial Asset-Backed [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Commercial Asset-Backed [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Short-Term [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Short-Term [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Short-Term [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Short-Term [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Short-Term [Member]
Level 3 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other [Member]
Total Fair Value [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other [Member]
Carrying Amount [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other [Member]
Level 1 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other [Member]
Level 2 [Member]
Dec. 31, 2013
Successor Ambac [Member]
Other [Member]
Level 3 [Member]
Apr. 30, 2013
Predecessor Ambac [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Apr. 30, 2013
Predecessor Ambac [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Total Fair Value [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Total Fair Value [Member]
Futures Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Total Fair Value [Member]
Credit Derivatives [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Total Fair Value [Member]
Other Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Carrying Amount [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Carrying Amount [Member]
Futures Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Carrying Amount [Member]
Credit Derivatives [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Carrying Amount [Member]
Other Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Assets [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Assets [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Total Fair Value [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Interest Rate Swaps - Liability Position [Member]
Carrying Amount [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Futures Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Credit Derivatives [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Other Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 1 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Futures Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Credit Derivatives [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Other Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 2 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Futures Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Credit Derivatives [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Other Contracts [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Other Assets [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Interest Rate Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Level 3 [Member]
Interest Rate Swaps - Liability Position [Member]
Currency Swaps [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Municipal Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Municipal Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Municipal Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Municipal Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Municipal Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Total Fair Value [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Carrying Amount [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 1 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 2 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Corporate Obligations [Member]
Level 3 [Member]
Variable Interest Entity [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Foreign Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Foreign Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Foreign Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Foreign Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Foreign Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Government Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Government Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Government Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Government Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Government Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Agency Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Agency Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Agency Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Agency Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
U.S. Agency Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Residential Mortgage-Backed Securities [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Collateralized Debt Obligations [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Collateralized Debt Obligations [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Collateralized Debt Obligations [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Commercial Asset-Backed [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Commercial Asset-Backed [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other Commercial Asset-Backed [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Short-Term [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Short-Term [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Short-Term [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Short-Term [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Short-Term [Member]
Level 3 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other [Member]
Total Fair Value [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other [Member]
Carrying Amount [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other [Member]
Level 1 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other [Member]
Level 2 [Member]
Dec. 31, 2012
Predecessor Ambac [Member]
Other [Member]
Level 3 [Member]
Financial assets:                                                                                                                                                                                                                                                                                                                                                                                                                                    
Fixed income securities     $ 6,282,658                                                                                                 $ 1,377,723 $ 1,377,723    $ 1,377,723    $ 1,489,369 $ 2,475,182 $ 1,489,369 $ 2,475,182       $ 1,485,867    $ 3,502 $ 2,475,182 $ 124,877 $ 124,877    $ 124,877    $ 126,248 $ 126,248 $ 126,248       $ 32,154 $ 32,154    $ 31,946 $ 208 $ 1,558,625 $ 1,558,625    $ 1,558,625    $ 183,872 $ 183,872    $ 183,872    $ 992,448 $ 992,448    $ 928,375 $ 64,073                       $ 6,329,832                                                                                               $ 1,848,932 $ 1,848,932    $ 1,848,932    $ 1,077,972 $ 2,261,294 $ 1,077,972 $ 2,261,294       $ 1,074,316    $ 3,656 $ 2,261,294 $ 70,112 $ 70,112    $ 70,112    $ 127,283 $ 127,283 $ 127,283       $ 82,535 $ 82,535    $ 82,535    $ 1,455,582 $ 1,455,582    $ 1,455,582    $ 33,342 $ 33,342    $ 26,860 $ 6,482 $ 706,637 $ 706,637    $ 656,373 $ 50,264                    
Restricted cash               17,498         17,498                         17,498                                                                                                                                                                             2,290         2,290                         2,290                                                                                                                                                                  
Short term investments     271,119                                                                                                                                                                                           271,119 271,119 267,612 3,507                661,658                                                                                                                                                                                         661,658 661,658 657,886 3,772             
Fixed income securities, pledged as collateral                                                                                                                                               126,223 126,223 126,223                                                                                                                                                                                                             265,779 265,779 265,779                                                                  
Other investments     241,069                                                                                                                                                                                                     241,069 241,069    240,969 100   100                                                                                                                                                                                                   100 100       100
Cash             77,370         77,370                         77,370                                                                                                                                                                             43,837         43,837                         43,837                                                                                                                                                                    
Loans at Carrying Amount 6,238 9,203                   6,179 13,398,895                                                                                                                                                                                                             9,203 15,568,711                                                                                                                                                                                          
Loans             6,238 13,398,895                                                                         6,238 13,398,895                                                                                                                                     7,387 15,560,051                                                        200,978               7,387 15,359,073                                                                                                                            
Derivative assets                 2,337         2,337     76,631 76,631                 2,337                         76,631                                                                                                                                                     1,253         1,253     124,853 124,853                 1,253                         124,853                                                                                                                                        
Derivative assets                                     (1,257)     (1,257)                                    (1,257)                                                                                                                                                                                                                                                                                                                                                          
Other assets 13,384 14,557         13,384         13,384                                                               13,384                                                                                                                                       14,557         14,557                                                               14,557                                                                                                                              
Total financial assets             22,590,005         22,589,946                         617,288                 6,011,135                 15,961,582                                                                                                                                       24,345,454         24,355,930                         1,098,328                 5,544,313                 17,702,813                                                                                                                              
Financial liabilities:                                                                                                                                                                                                                                                                                                                                                                                                                                    
Obligations under investment and repurchase agreements     359,070 358,878               359,070                                                                                                                                                                                             357,373 356,091               362,017                                                                                                                                                                                            
Obligations under investment and repurchase agreements             360,506                                                                         360,506                                                                                                                                       361,905                                                                         361,905                                                                                                                              
Liabilities subject to compromise                                                                                                                                                                                                                       1,704,641 1,704,904               1,690,312                                                                                                                                                                                            
Liabilities subject to compromise                                                                                                                                                                                                                             434,823                                                      434,823                                                                                                                                                 
Long term debt, including accrued interest 963,178 150,170 963,178 940,313 14,091,753 15,023,038 1,215,029         1,256,602                                                               1,215,029                                                                                                                               155,271 150,170 15,041,624 15,436,008 801,277         377,524                                                               801,277                                                                                                                              
Derivative liabilities                                 (55,619) (55,619)   1,680,834     1,680,834                                 (55,619)   1,680,834                                                                                                                                                                 (73,264) (73,264)   2,131,315     2,131,315                                 (73,264)   2,131,315                                                                                                                                    
Derivative liabilities 94,322 213,585               94,322 165       94,322 165     215,030   91,472 215,030   91,472                                165   122,418   91,472       94,322      92,612                                                                                                                                  213,585 220       213,585 220     390,774   90,466 390,774   90,466                                220   282,022   90,466       213,585      108,752                                                                                                                   
Liabilities for net financial guarantees written             4,876,617         4,509,539                                                               4,876,617                                                                                                                                       3,091,257         7,074,808                                                               3,091,257                                                                                                                              
Long-term debt         14,091,753     14,091,753         14,091,753                                            12,577,148                 1,514,605                                                                                                                                   15,200,538   15,414,233         15,436,008                                            12,457,732                 2,956,501                                                                                                                            
Total financial liabilities             $ 22,570,109         $ 22,243,168                                            $ 14,416,418                 $ 8,153,691                                                                                                                                       $ 22,856,591         $ 27,693,765                                            $ 15,323,314                 $ 7,533,277