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Loans (Narrative) (Details) (USD $) | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2011 | Dec. 31, 2010
Financing Receivable, Recorded Investment [Line Items] |  |
Partial charge-offs on impaired loans | $ 95,900,000 | $ 53,600,000
Recorded investment, related to loans | 81,200,000 | 140,500,000
Recorded investment | 192,464,000 | 250,933,000
TDRs included in nonaccrual loan totals | 82,100,000 | 80,700,000
TDRs included in accruing loan totals | 15,460,000 | 0
Nonaccrual TDRs considered current | 55,900,000 | 50,300,000
Specific reserves related to troubled debt restructuring | 12,200,000 | 8,400,000
Commitments to lend additional funds to borrowers whose terms had been modified in a TDR | 1,200,000 | 434,000
Commercial Real Estate [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment | 44,099,000 |
Commercial Real Estate [Member] | With No Related Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment | 31,680,000 | 19,697,000
Commercial Real Estate [Member] | With An Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment | 12,419,000 | 38,233,000
Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment | 21,000 |
Modified substandard commercial loans, total recorded investment | 11,700,000 |
Consumer [Member] | With No Related Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment |  |
Consumer [Member] | With An Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Recorded investment | 21,000 |
Commercial [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Modified substandard commercial loans, total recorded investment | 6,000,000 |
Allowance For Loans And Leases Receivable [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Allowance for loans individually evaluated for impairment | 33,300,000 | 43,500,000
With No Related Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Partial charge-offs on impaired loans | 52,000,000 | 12,500,000
With An Allowance Recorded [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Partial charge-offs on impaired loans | $ 43,900,000 | $ 41,100,000

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- Definition Partial Charge-Offs On Impaired Loans + Details
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- Definition Specific Reserves Related To Troubled Debt Restructuring + Details
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- Definition Troubled debt restructuring included in accruing loans. + Details
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- Definition Troubled debt restructuring included in nonaccrual loans. + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953423-111524 -Subparagraph (g) + Details
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- Definition The recorded investment related to impaired financing receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=6965416&loc=SL6953550-111524 -Subparagraph (b) + Details
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