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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
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Mar. 31, 2018 | Mar. 31, 2017
Financing Receivable, Modifications [Line Items] |  |
Total TDRs | $ 8,194 | $ 21,109
Performing TDRs [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Beginning balance | 4,809 | 19,233
New modifications | 0 | 3,143
Payoffs/payments, net and other | (524) | (3,003)
TDRs returned to accrual status | 0 | 329
TDRs placed on nonaccrual status | 0 | 0
Ending balance | 4,285 | 19,702
Nonperforming TDRs [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Beginning balance | 4,200 | 1,626
New modifications | 0 | 2,066
Charge-offs | 0 | 0
Payoffs/payments, net and other | (291) | (1,956)
TDRs returned to accrual status | 0 | (329)
TDRs placed on nonaccrual status | 0 | 0
Ending balance | $ 3,909 | $ 1,407

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- Definition Financing Receivable Modifications Recorded Investments + References No definition available. + Details
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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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + 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=82895541&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=82895541&loc=d3e18845-111554 + Details
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- Details
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