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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 | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015
Financing Receivable, Modifications [Line Items] |  |
Total TDRs | $ 20,859 | $ 55,309
Performing TDRs [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Beginning balance | 42,687 | 53,589
New modifications | 1,996 | 3,689
Payoffs and payments, net | (34,001) | (15,235)
TDRs returned to accrual status | 8,551 | 644
TDRs placed on nonaccrual status | 0 | 0
Ending balance | 19,233 | 42,687
Nonperforming TDRs [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Beginning balance | 12,622 | 20,285
New modifications | 102 | 661
Charge-offs | (38) |
Transfer to OREO |  | (842)
Payoffs and payments, net | (2,509) | (6,838)
TDRs returned to accrual status | (8,551) | (644)
TDRs placed on nonaccrual status | 0 | 0
Ending balance | $ 1,626 | $ 12,622

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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 Payments + 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 + 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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