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Bank subsidiary (Details 5) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Amortized Cost |  |
Due after one year through five years | $ 189,424 |
Due after five years through ten years | 79,093 |
Due after ten years | 18,270 |
Total amortized cost | 286,787 |
Mortgage-related securities-FNMA, FHLMC and GNMA - amortized cost | 334,607 |
Total available-for-sale securities, amortized cost | 621,394 | 607,918
Fair value |  |
Due after one year through five years | 191,698 |
Due after five years through ten years | 82,877 |
Due after ten years | 18,868 |
Total fair value | 293,443 |
Mortgage-related securities-FNMA, FHLMC and GNMA - fair value | 345,669 |
Total available for sale securities | $ 639,112 | $ 624,331

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