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Loans and Lease Finance Receivables and Allowance for Loan Losses - Summary of Activity Related to Troubled Debt Restructurings (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014
Financing Receivable, Modifications [Line Items] |  |  |  |
Total TDRs | $ 60,361 | $ 78,214 | $ 60,361 | $ 78,214
Performing TDRs [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Beginning balance | 45,166 | 61,878 | 53,589 | 66,955
New modifications | 2,353 | 0 | 2,383 | 41
Payoffs and payments, net | (2,306) | (6,270) | (11,275) | (11,388)
TDRs returned to accrual status | 0 | 0 | 516 | 0
TDRs placed on nonaccrual status | 0 | 0 | 0 | 0
Ending balance | 45,213 | 55,608 | 45,213 | 55,608
Nonperforming TDRs [Member] |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Beginning balance | 15,167 | 27,397 | 20,285 | 25,119
New modifications | 330 | 0 | 661 | 4,187
Charge-offs | 0 | (1,061) | 0 | (1,061)
Transfer to OREO | 0 | 0 | (842) | 0
Payoffs and payments, net | (349) | (3,730) | (4,440) | (5,639)
TDRs returned to accrual status | 0 | 0 | (516) | 0
TDRs placed on nonaccrual status | 0 | 0 | 0 | 0
Ending balance | $ 15,148 | $ 22,606 | $ 15,148 | $ 22,606

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- Definition The increase (decrease) in performing troubled debt restructurings financing receivables, because of returns to accrual status. + References No definition available. + Details
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- Definition The decrease in performing troubled debt restructurings financing receivables, because of the change in accrual status to nonaccrual. + References No definition available. + Details
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- Definition Financing Receivables Impaired Troubled Debt Restructuring Additions + References No definition available. + Details
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- Definition Financing Receivables Impaired Troubled Debt Restructuring Transfer To Other Real Estate Owned + References No definition available. + Details
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- Definition The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
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- Definition Reflects the amount of the write-down related to a troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18845-111554 + Details
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