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Commercial Mortgage Residual Interests Commercial Mortgage Residual Interests (Tables) | 9 Months Ended
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Sep. 30, 2012
Commercial Mortgage Residual Interests [Abstract] |
Retained Interest, Fair Value Disclosure, Significant Assumptions [Table Text Block] | The following table summarizes the key assumptions used in determining the value of the Residuals as of:
| September 30, 2012 |  | December 31, 2011
Discount rate | 25 | % |  | 25 | %
Average life equivalent CPR (1) speeds range | 0.80% to 20.42% CPR |  |  | 2.18% to 18.57% CPR |
Foreclosures: |  |  |
Frequency curve default model | 0.1% - 3.9% range |  |  | 0.2% - 4.7% range |
Loss severity of loans in foreclosure | 20 | % |  | 20 | %
Yield: |  |  |
LIBOR | Forward 3-month curve |  |  | Forward 3-month curve |
Prime | Forward curve |  |  | Forward curve |
(1) Conditional prepayment rate.
Schedule Of Amounts Recognized As Unrealized Gains And Or Losses Recorded As Other Comprehensive Income And Other Than Temporary Valuation Impairments Recorded In Earnings [Table Text Block] | The following table summarizes the recognition of unrealized gains and/or losses recorded as other comprehensive income as well as other than temporary valuation impairments recorded in condensed consolidated statements of earnings (dollars in thousands):
| Nine Months Ended September 30,
| 2012 |  | 2011
Unrealized gains | $ | 213 |  |  | $ | 599 |
Other than temporary valuation impairment | 2,718 |  |  | 396 |

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- Definition Schedule Of Amounts Recognized As Unrealized Gains And Or Losses Recorded As Other Comprehensive Income And Other Than Temporary Valuation Impairments Recorded In Earnings [Table Text Block] + References No definition available. + Details
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- Definition Description of significant assumptions used by management to measure fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611 + Details
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