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Bank subsidiary (Details 7) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2013 | Dec. 31, 2012
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | $ 41,985 | $ 37,906
Charge-offs | (4,783) | (12,830)
Recoveries | 2,903 | 4,026
Provision | 899 | 12,883
Valuation allowance, balance at the end of the period | 41,004 | 41,985
Ending balance: individually evaluated for impairment | 6,772 | 6,799
Ending balance: collectively evaluated for impairment | 34,232 | 35,186
Financing Receivables: |  |
Ending balance | 3,963,389 | 3,790,856
Ending balance: individually evaluated for impairment | 63,557 | 72,473
Ending balance: collectively evaluated for impairment | 3,899,832 | 3,718,383
Residential 1-4 family |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 6,068 | 6,500
Charge-offs | (1,056) | (3,183)
Recoveries | 1,225 | 1,328
Provision | 120 | 1,423
Valuation allowance, balance at the end of the period | 6,357 | 6,068
Ending balance: individually evaluated for impairment | 944 | 384
Ending balance: collectively evaluated for impairment | 5,413 | 5,684
Financing Receivables: |  |
Ending balance | 2,001,035 | 1,866,450
Ending balance: individually evaluated for impairment | 21,417 | 25,279
Ending balance: collectively evaluated for impairment | 1,979,618 | 1,841,171
Commercial real estate |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 2,965 | 1,688
Provision | 1,152 | 1,277
Valuation allowance, balance at the end of the period | 4,117 | 2,965
Ending balance: individually evaluated for impairment | 820 | 535
Ending balance: collectively evaluated for impairment | 3,297 | 2,430
Financing Receivables: |  |
Ending balance | 382,735 | 375,677
Ending balance: individually evaluated for impairment | 3,811 | 6,751
Ending balance: collectively evaluated for impairment | 378,924 | 368,926
Home equity line of credit |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 4,493 | 4,354
Charge-offs | (738) | (716)
Recoveries | 256 | 108
Provision | 998 | 747
Valuation allowance, balance at the end of the period | 5,009 | 4,493
Ending balance: collectively evaluated for impairment | 5,009 | 4,493
Financing Receivables: |  |
Ending balance | 673,727 | 630,175
Ending balance: individually evaluated for impairment | 837 | 1,560
Ending balance: collectively evaluated for impairment | 672,890 | 628,615
Residential land |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 4,275 | 3,795
Charge-offs | (235) | (2,808)
Recoveries | 500 | 1,443
Provision | (2,353) | 1,845
Valuation allowance, balance at the end of the period | 2,187 | 4,275
Ending balance: individually evaluated for impairment | 1,641 | 3,221
Ending balance: collectively evaluated for impairment | 546 | 1,054
Financing Receivables: |  |
Ending balance | 21,836 | 25,815
Ending balance: individually evaluated for impairment | 16,041 | 18,563
Ending balance: collectively evaluated for impairment | 5,795 | 7,252
Commercial construction |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 2,023 | 1,888
Provision | 282 | 135
Valuation allowance, balance at the end of the period | 2,305 | 2,023
Ending balance: collectively evaluated for impairment | 2,305 | 2,023
Financing Receivables: |  |
Ending balance | 50,114 | 43,988
Ending balance: collectively evaluated for impairment | 50,114 | 43,988
Residential construction |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 9 | 4
Provision | 5 | 5
Valuation allowance, balance at the end of the period | 14 | 9
Ending balance: collectively evaluated for impairment | 14 | 9
Financing Receivables: |  |
Ending balance | 9,664 | 6,171
Ending balance: collectively evaluated for impairment | 9,664 | 6,171
Commercial loans |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 15,931 | 14,867
Charge-offs | (1,350) | (3,606)
Recoveries | 612 | 649
Provision | 1,114 | 4,021
Valuation allowance, balance at the end of the period | 16,307 | 15,931
Ending balance: individually evaluated for impairment | 3,367 | 2,659
Ending balance: collectively evaluated for impairment | 12,940 | 13,272
Financing Receivables: |  |
Ending balance | 719,519 | 721,349
Ending balance: individually evaluated for impairment | 21,431 | 20,298
Ending balance: collectively evaluated for impairment | 698,088 | 701,051
Consumer loans |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 4,019 | 3,806
Charge-offs | (1,404) | (2,517)
Recoveries | 310 | 498
Provision | (526) | 2,232
Valuation allowance, balance at the end of the period | 2,399 | 4,019
Ending balance: collectively evaluated for impairment | 2,399 | 4,019
Financing Receivables: |  |
Ending balance | 104,759 | 121,231
Ending balance: individually evaluated for impairment | 20 | 22
Ending balance: collectively evaluated for impairment | 104,739 | 121,209
Unallocated |  |
Allowance for loan losses: |  |
Valuation allowance, balance at the beginning of the period | 2,202 | 1,004
Provision | 107 | 1,198
Valuation allowance, balance at the end of the period | 2,309 | 2,202
Ending balance: collectively evaluated for impairment | $ 2,309 | $ 2,202

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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 + 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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- Definition The sum of the periodic provision charged to earnings, based on an assessment of uncollectibility from the counterparty on account of loan, lease or other credit losses, to reduce these accounts to the amount that approximates their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 11 -Article 9 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=7512638&loc=SL6953423-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Audit and Accounting Guide (AAG) -Number AAG-DEP -Paragraph 168, 169, 170 -IssueDate 2006-05-01 -Chapter 5 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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