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9) Other Business Activity (Details) (USD $) | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Details |  |
Mortgages originated and sold | $ (536,606,000) | $ (445,523,000)
AmountAvailableToOriginateLoansUnderWellsFargoAgreement | 75,000,000 |
AmountAvailableToOriginateLoansUnderUBS Agreement | 40,000,000 |
Interest accuring on a portion of the mortgage loans - range | 2.5% to 2.75% over the 30-day LIBOR rate |
Mortgage loans in which settlements with third party investors were still pending | $ 170,100,000 |

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