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Bank subsidiary (Details 10) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
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Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | $ 50,772 | $ 64,887
Accruing loans 90 days or more past due | 1,746 | 373
Residential 1-4 family |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 18,908 | 26,721
Commercial real estate |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 4,483 | 6,750
Home equity line of credit |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 1,948 | 2,349
Residential land |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 3,606 | 8,561
Accruing loans 90 days or more past due | 1,746 |
Commercial loans |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 21,308 | 20,222
Accruing loans 90 days or more past due |  | 131
Consumer loans |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 519 | 284
Accruing loans 90 days or more past due |  | $ 242

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