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Fair Value Disclosures (Narrative) (USD $) |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011 | Sep. 30, 2012 Impaired commercial mortgages [Member] | Sep. 30, 2011 Impaired commercial mortgages [Member] | Sep. 30, 2012 Impaired commercial mortgages [Member] | Sep. 30, 2011 Impaired commercial mortgages [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |  |
Percentage Of Fixed Maturity Securities Classified As Level 3 | 9.10% | 8.50% |  |  |  |
Fair Value Measured On Nonrecurring Basis Gains (Losses) |  |  | $ 1,600,000 | $ 1,900,000 | $ 4,400,000 | $ 1,500,000
Commercial Mortgage Loans Carrying Value Non Recurring |  |  | $ 23,500,000 | $ 21,900,000 | $ 23,500,000 | $ 21,900,000

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- Definition Carrying value of commercial mortgage loans where a nonrecurring fair value adjustment has been made, based on discounted cash flows using the market rate. + References No definition available. + Details
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- Definition Net gain (loss) recorded during the period for assets where a non-recurring fair value adjustment has been made. + References No definition available. + Details
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- Definition Percentage of fixed maturity securities classified as Level 3 + References No definition available. + Details
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- Details
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