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Bank subsidiary (Details 9) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
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Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | $ 57,655 | $ 66,754
Accruing loans 90 days or more past due | 2,956 | 541
Residential 1-4 family |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 29,613 | 28,298
Commercial real estate |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 2,929 | 3,436
Home equity line of credit |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 2,621 | 2,258
Residential land |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 4,393 | 14,535
Accruing loans 90 days or more past due | 2,473 | 205
Commercial loans |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 17,856 | 17,946
Accruing loans 90 days or more past due | 123 | 28
Consumer loans |  |
Credit risk profile based on nonaccrual loans |  |
Nonaccrual loans | 243 | 281
Accruing loans 90 days or more past due | $ 360 | $ 308

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