XML 29 R67.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 | Jun. 30, 2013 | Dec. 31, 2012 | 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] 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] 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] 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] 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. 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] 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] 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] 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] 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] Other [Member] Total Fair Value [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Other [Member] Carrying Amount [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 1 [Member] Municipal Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Corporate Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Foreign Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] U.S. Government Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] U.S. Agency Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Residential Mortgage-Backed Securities [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Collateralized Debt Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Other Commercial Asset-Backed [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Short-Term [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 1 [Member] Other [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 2 [Member] Municipal Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Corporate Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Foreign Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] U.S. Government Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] U.S. Agency Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Residential Mortgage-Backed Securities [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Collateralized Debt Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Other Commercial Asset-Backed [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Short-Term [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 2 [Member] Other [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] Level 3 [Member] Municipal Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Corporate Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Foreign Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] U.S. Government Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] U.S. Agency Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Residential Mortgage-Backed Securities [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Collateralized Debt Obligations [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Other Commercial Asset-Backed [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Short-Term [Member] | Dec. 31, 2012 Predecessor Ambac [Member] Level 3 [Member] Other [Member] | Jun. 30, 2013 Successor Ambac [Member] | Apr. 30, 2013 Successor Ambac [Member] | Jun. 30, 2013 Successor Ambac [Member] Variable Interest Entity [Member] | Apr. 30, 2013 Successor Ambac [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Total Fair Value [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Total Fair Value [Member] Futures Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Total Fair Value [Member] Credit Derivatives [Member] | Jun. 30, 2013 Successor Ambac [Member] Total Fair Value [Member] Other Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Carrying Amount [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Carrying Amount [Member] Futures Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Carrying Amount [Member] Credit Derivatives [Member] | Jun. 30, 2013 Successor Ambac [Member] Carrying Amount [Member] Other Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Other Assets [Member] Total Fair Value [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Other Assets [Member] Carrying Amount [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Total Fair Value [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Total Fair Value [Member] Interest Rate Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Total Fair Value [Member] Currency Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Carrying Amount [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Carrying Amount [Member] Interest Rate Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Interest rate swaps - liability position [Member] Carrying Amount [Member] Currency Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Municipal Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Municipal Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Corporate Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Corporate Obligations [Member] Total Fair Value [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Corporate Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Corporate Obligations [Member] Carrying Amount [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Foreign Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Foreign Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] U.S. Government Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] U.S. Government Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] U.S. Agency Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] U.S. Agency Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Residential Mortgage-Backed Securities [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Residential Mortgage-Backed Securities [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Collateralized Debt Obligations [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Collateralized Debt Obligations [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Other Commercial Asset-Backed [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Other Commercial Asset-Backed [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Short-Term [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Short-Term [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Other [Member] Total Fair Value [Member] | Jun. 30, 2013 Successor Ambac [Member] Other [Member] Carrying Amount [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Futures Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Credit Derivatives [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Other Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Other Assets [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Interest rate swaps - liability position [Member] Currency Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Municipal Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Corporate Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Foreign Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] U.S. Government Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] U.S. Agency Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Residential Mortgage-Backed Securities [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Collateralized Debt Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Other Commercial Asset-Backed [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Short-Term [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 1 [Member] Other [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Futures Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Credit Derivatives [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Other Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Other Assets [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Interest rate swaps - liability position [Member] Currency Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Municipal Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Corporate Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Foreign Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] U.S. Government Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] U.S. Agency Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Residential Mortgage-Backed Securities [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Collateralized Debt Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Other Commercial Asset-Backed [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Short-Term [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 2 [Member] Other [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Futures Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Credit Derivatives [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Other Contracts [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Other Assets [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Interest rate swaps - liability position [Member] Interest Rate Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Interest rate swaps - liability position [Member] Currency Swaps [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Municipal Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Corporate Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Corporate Obligations [Member] Variable Interest Entity [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Foreign Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] U.S. Government Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] U.S. Agency Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Residential Mortgage-Backed Securities [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Collateralized Debt Obligations [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Other Commercial Asset-Backed [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Short-Term [Member] | Jun. 30, 2013 Successor Ambac [Member] Level 3 [Member] Other [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities |  |  |  |  |  | $ 2,261,294 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,848,932 | $ 1,848,932 | $ 1,077,972 | $ 2,261,294 | $ 1,077,972 | $ 2,261,294 | $ 70,112 | $ 70,112 | $ 127,283 | $ 127,283 | $ 82,535 | $ 82,535 | $ 1,455,582 | $ 1,455,582 | $ 33,342 | $ 33,342 | $ 706,637 | $ 706,637 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 127,283 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,848,932 | $ 1,074,316 |  | $ 70,112 |  | $ 82,535 | $ 1,455,582 | $ 26,860 | $ 656,373 |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,656 | $ 2,261,294 |  |  |  |  | $ 6,482 | $ 50,264 |  |  |  |  | $ 2,242,989 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,637,190 | $ 1,637,190 | $ 982,587 | $ 2,242,989 | $ 982,587 | $ 2,242,989 | $ 105,191 | $ 105,191 | $ 250,838 | $ 250,838 | $ 53,246 | $ 53,246 | $ 1,520,676 | $ 1,520,676 | $ 47,618 | $ 47,618 | $ 987,929 | $ 987,929 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 250,838 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,637,190 | $ 979,166 |  | $ 105,191 |  | $ 53,246 | $ 1,520,676 | $ 44,203 | $ 926,193 |  |  |  |  |  |  |  |  |  |  |  |  | $ 3,421 | $ 2,242,989 |  |  |  |  | $ 3,415 | $ 61,736 |  |
Restricted cash |  |  |  |  |  |  |  | 2,290 |  |  |  |  | 2,290 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,290 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,994 |  |  |  |  | 22,994 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,994 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short term investments |  |  |  | 661,658 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 661,658 | 661,658 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 657,886 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,772 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 611,177 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 611,177 | 611,177 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 595,195 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15,982 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fixed income securities, pledged as collateral |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 265,779 | 265,779 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 265,779 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 164,295 | 164,295 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 164,295 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other investments |  |  |  | 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 | 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100 | 240,417 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 240,417 | 240,417 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 240,317 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100
Cash |  |  |  |  |  |  | 43,837 |  |  |  |  | 43,837 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 43,837 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,515 |  |  |  |  | 20,515 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,515 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans at Carrying Amount |  |  |  |  |  |  |  |  |  |  |  | 9,203 | 15,568,711 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,053 | 13,820,878 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans |  |  |  |  |  | 15,359,073 | 7,387 | 15,560,051 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,978 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,387 | 15,359,073 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,820,878 |  | 7,179 | 13,820,878 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,179 | 13,820,878 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative assets |  |  |  |  |  |  |  |  | 1,253 |  |  |  |  | 1,253 |  |  | 124,853 | 124,853 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,253 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 124,853 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,852 |  |  |  |  | 2,852 |  |  | 91,455 | 91,455 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,852 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 91,455 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,129) |  |  | (3,129) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (3,129) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other assets | 13,884 | 14,557 |  |  |  |  | 14,557 |  |  |  |  | 14,557 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,557 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,884 |  |  |  |  | 13,884 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,884 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total financial assets |  |  |  |  |  |  | 24,345,454 |  |  |  |  | 24,355,930 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,098,328 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,544,313 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,702,813 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,820,781 |  |  |  |  | 22,820,655 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,056,689 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,610,490 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,153,602 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations under investment and repurchase agreements |  |  | 357,373 | 356,091 |  |  |  |  |  |  |  | 362,017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 358,610 | 358,878 |  |  |  |  |  |  |  | 364,536 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Obligations under investment and repurchase agreements |  |  |  |  |  |  | 361,905 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 361,905 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 365,319 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 365,319 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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 |  |  | 155,271 | 150,170 | 15,041,624 | 15,436,008 | 801,277 |  |  |  |  | 377,524 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 801,277 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 945,940 | 940,313 | 14,268,493 | 15,023,038 | 1,186,821 |  |  |  |  | 1,193,830 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,186,821 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (73,264) | (73,264) |  | 2,131,315 |  |  | 2,131,315 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (73,264) |  | 2,131,315 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (53,252) | (53,252) |  | 1,897,311 |  |  | 1,897,311 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (53,252) |  | 1,897,311 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative liabilities | 232,267 | 213,585 |  |  |  |  |  |  |  | 213,585 | 220 |  |  |  | 213,585 | 220 |  |  | 390,774 |  | 90,466 | 390,774 |  | 90,466 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 220 |  | 282,022 |  | 90,466 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 213,585 |  |  | 108,752 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 232,267 | 192 |  |  |  | 232,267 | 192 |  |  | 272,583 |  | 92,472 | 272,583 |  | 92,472 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 192 |  | 164,187 |  | 92,472 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 232,267 |  |  | 108,396 |  |  |  |  |  |  |  |  |  |  |  |  |
Liabilities for net financial guarantees written |  |  |  |  |  |  | 3,091,257 |  |  |  |  | 7,074,808 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,091,257 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,809,530 |  |  |  |  | 4,634,297 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,809,530 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  | 15,200,538 |  | 15,414,233 |  |  |  |  | 15,436,008 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,457,732 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,956,501 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 14,262,734 |  |  | 14,268,493 |  |  |  |  | 14,268,493 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,694,806 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,573,687 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total financial liabilities |  |  |  |  |  |  | $ 22,856,591 |  |  |  |  | $ 27,693,765 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,323,314 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,533,277 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 23,071,736 |  |  |  |  | $ 22,902,729 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,795,716 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,276,020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

X
- Definition Guaranteed investment agreements at fair value. + References No definition available. + Details
Name: | ambc_GuaranteedInvestmentAgreementsFairValueDisclosure
Namespace Prefix: | ambc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Liabilities subject to compromise at fair value. + References No definition available. + Details
Name: | ambc_LiabilitiesSubjectToCompromiseFairValueDisclosure
Namespace Prefix: | ambc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of restricted cash and cash equivalents. + References No definition available. + Details
Name: | ambc_RestrictedCashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | ambc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594 + Details
Name: | us-gaap_AvailableForSaleSecuritiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of the sum of the obligations to contract holders to provide to them an agreed upon rate of return pursuant to the terms of the underlying contract. These contracts represent lending by the contract holders to the entity in return for a guaranteed (primarily fixed) interest rate until maturity, unless called earlier if the contracts provide that option to the contract holders (usually institutions). There is little or no insurance risk for the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.14) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_BorrowingsUnderGuaranteedInvestmentAgreements
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8 -Footnote 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of liability associated with derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeAssetFairValueGrossLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of derivative asset, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 205G -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44C -Subparagraph a -Clause 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeLiabilityFairValueGrossAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investments accounted for under the equity method of accounting as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 6 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6903542&loc=d3e32014-111567 + Details
Name: | us-gaap_EquityMethodInvestmentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of contractual guarantees to which the Company is obligated as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6851643&loc=d3e12201-110248 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 45 -Paragraph 3, 8, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_GuaranteesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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=6585303&loc=d3e56145-112766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Statement of Position (SOP) -Number 90-7 -Paragraph 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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 Reference 4: 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 + Details
Name: | us-gaap_LiabilitiesSubjectToCompromise
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents loan receivable as presented on the statement of financial position which may include mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts, or any other loans which are due the Company as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Glossary Loan -URI http://asc.fasb.org/extlink&oid=6517073 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 114 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_LoansReceivableFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total of loans held-for-sale and held-in-portfolio net of unearned income, allowance for loan and lease losses, if any, unamortized loan origination and other fees and costs, and purchased premiums or discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph a -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(a)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
Name: | us-gaap_LongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. + References No definition available. + Details
Name: | us-gaap_LongTermDebtFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Other investments not otherwise specified in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 12 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph g -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(f,g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_OtherInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Other investments not otherwise specified in the taxonomy that will be realized in a short period of time, usually less than one year or the normal operating cycle, whichever is longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Section 563c.102 -Chapter V -Subsection I -LegacyDoc This is a non-GAAP reference that was included in the 2009 taxonomy. It will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.5) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(g)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 5 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Subparagraph g -Article 7 + Details
Name: | us-gaap_OtherShortTermInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=7523297&loc=SL6224234-111729 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS140-4/FIN46(R)-8 -Paragraph B6 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 140 -Paragraph 17 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6467456&loc=d3e113888-111728 + Details
Name: | us-gaap_SecurityOwnedAndPledgedAsCollateralFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant