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Loans and Loans Held for Sale - Summary of Nonperforming Assets of Defaulted TDRs (Detail) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 USD ($) contract | Sep. 30, 2015 USD ($) contract | Sep. 30, 2016 USD ($) contract | Sep. 30, 2015 USD ($) contract
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 4
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 307
Commercial and Industrial |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 0
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0
Commercial Real Estate |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 0
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0
Commercial Construction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 0
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0
Residential Real Estate |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 1
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 183
Home Equity |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 3
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 124
Installment and Other Consumer |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 0
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0
Consumer Construction |  |  |  |
Financing Receivable, Modifications [Line Items] |  |  |  |
Number of Defaults | contract | 0 | 0 | 0 | 0
Recorded Investment | $ | $ 0 | $ 0 | $ 0 | $ 0

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953682-111524 + Details
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