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Loss And Loss Adjustment Expense Reserves (RMBS Reserves) (Narrative) (Details) (USD $) | 1 Months Ended | 6 Months Ended
--- | --- | ---
May 31, 2011 | Dec. 31, 2011 | Jun. 30, 2011
Percentage of loans in delinquent bucket | 10.00% |  |
Percentage of loans charged off | 30.00% |  |
Percentage of current roll to loss for transaction | 3.00% |  |
Decrease in percentage of current roll to loss for transaction | 25.00% | 0.75% |
Percentage of further reduction of current roll to loss for transaction |  |  | 0.00%
ALT-A [Member] | RMBS And ALT-A [Member] |  |  |
Assumed percent of loss severity |  |  | 100.00%
Percentage of loss before declining |  |  | 25.00%
RMBS [Member] |  |  |
Delinquency period for fully charged-off loans, days |  |  | 90
Recoveries of actual and expected payments |  |  | $ 154,000,000
RMBS And HELOC And CES [Member] |  |  |
Charged-off loan recovery value |  |  | 0
Assumed roll rate for ninety plus day delinquent loans |  |  | 100.00%
Roll rate percentage for additional stress test |  |  | 97.00%
Period of elevated delinquency and loss, beginning, months |  |  | 6
Current roll to loss percentage as a percent of prior month roll to loss percentage |  |  | 25.00%
Period of elevated delinquency and loss for stress case, additional months |  |  | 6
Increase to case basis reserves |  |  | $ 175,000,000

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- Definition Assumed roll rate for ninety plus day delinquent loans. + Details
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- Definition Charged Off Loan Recovery Value + Details
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- Definition Current roll to loss percentage as percent of prior month roll to loss percentage. + Details
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- Definition Decrease In Percentage Of Current Roll To Loss For Transaction + Details
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- Definition Delinquency period for fully charged off loans, days. + Details
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- Definition Recoveries of actual and expected payments resulting from ineligble mortgage loans. + Details
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- Definition Loss Severity, Percentage + Details
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- Definition Percentage Of Current Roll To Loss For Transaction + Details
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Period Type: | duration

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- Definition Percentage Of Further Reduction Of Current Roll To Loss For Transaction + Details
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- Definition Percentage Of Loans Charged Off + Details
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- Definition Percentage Of Loans In Delinquent Bucket + Details
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- Definition Percentage Of Loss Before Declining + Details
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