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Bank subsidiary (Details 8) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
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Credit risk profile based on payment activity for loans |  |
30-59 days past due | $ 10,319 | $ 15,193
60-89 days past due | 6,109 | 6,729
Greater than 90 days | 43,343 | 44,397
Total past due | 59,771 | 66,319
Current | 3,698,132 | 3,628,216
Total financing receivables | 3,757,903 | 3,694,535
Recorded Investment greater than 90 days and accruing | 2,956 | 541
Residential 1-4 family |  |
Credit risk profile based on payment activity for loans |  |
30-59 days past due | 5,830 | 10,391
60-89 days past due | 1,727 | 4,583
Greater than 90 days | 28,626 | 28,113
Total past due | 36,183 | 43,087
Current | 1,863,397 | 1,883,687
Total financing receivables | 1,899,580 | 1,926,774
Commercial real estate |  |
Credit risk profile based on payment activity for loans |  |
Greater than 90 days | 2,929 |
Total past due | 2,929 |
Current | 364,836 | 331,931
Total financing receivables | 367,765 | 331,931
Home equity line of credit |  |
Credit risk profile based on payment activity for loans |  |
30-59 days past due | 584 | 1,671
60-89 days past due | 758 | 494
Greater than 90 days | 1,965 | 1,421
Total past due | 3,307 | 3,586
Current | 600,972 | 531,895
Total financing receivables | 604,279 | 535,481
Residential land |  |
Credit risk profile based on payment activity for loans |  |
30-59 days past due | 1,346 | 2,352
60-89 days past due | 3,017 | 575
Greater than 90 days | 6,384 | 13,037
Total past due | 10,747 | 15,964
Current | 18,533 | 29,428
Total financing receivables | 29,280 | 45,392
Recorded Investment greater than 90 days and accruing | 2,473 | 205
Commercial construction |  |
Credit risk profile based on payment activity for loans |  |
Current | 42,913 | 41,950
Total financing receivables | 42,913 | 41,950
Residential construction |  |
Credit risk profile based on payment activity for loans |  |
Current | 5,648 | 3,327
Total financing receivables | 5,648 | 3,327
Commercial loans |  |
Credit risk profile based on payment activity for loans |  |
30-59 days past due | 1,681 | 226
60-89 days past due | 251 | 733
Greater than 90 days | 2,948 | 1,340
Total past due | 4,880 | 2,299
Current | 699,220 | 714,128
Total financing receivables | 704,100 | 716,427
Recorded Investment greater than 90 days and accruing | 123 | 28
Consumer loans |  |
Credit risk profile based on payment activity for loans |  |
30-59 days past due | 878 | 553
60-89 days past due | 356 | 344
Greater than 90 days | 491 | 486
Total past due | 1,725 | 1,383
Current | 102,613 | 91,870
Total financing receivables | 104,338 | 93,253
Recorded Investment greater than 90 days and accruing | $ 360 | $ 308

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- Definition Financing receivables that are less than 60 days past due but more than 29 days past due. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524 + Details
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- Definition Financing receivables that are less than 90 days past due but more than 59 days past due. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524 + Details
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- Definition Recorded investment in financing receivables that are 90 days or more past due and still accruing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5111-111524 + Details
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- Definition Financing receivables that are current. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953401-111524 + Details
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- Definition Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Article 5 + Details
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