Loans and Loans Held for Sale - Summary of Nonperforming Assets of Defaulted TDRs (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2015 USD ($) contract loan	Dec. 31, 2014 USD ($) contract
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	39
Number of Defaults \| contract	0	3
Recorded Investment	$ 0	$ 64
Commercial Real Estate
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	8
Loans modified not considered to be troubled debt restructuring	$ 6,100
Number of Defaults \| contract	0	0
Recorded Investment	$ 0	$ 0
Commercial and Industrial
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	11
Loans modified not considered to be troubled debt restructuring	$ 7,800
Number of Defaults \| contract	0	0
Recorded Investment	$ 0	$ 0
Commercial Construction
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	14
Loans modified not considered to be troubled debt restructuring	$ 8,500
Residential Real Estate
Financing Receivable, Modifications [Line Items]
Number of Defaults \| contract	0	1
Recorded Investment	$ 0	$ 20
Home Equity
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	4
Loans modified not considered to be troubled debt restructuring	$ 400
Number of Defaults \| contract	0	2
Recorded Investment	$ 0	$ 44
Residential Mortgage
Financing Receivable, Modifications [Line Items]
Number of loan modified \| loan	2
Loans modified not considered to be troubled debt restructuring	$ 100

Loans modified not considered to be troubled debt restructuring.

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Number Of Loans Modified Not Considered To Be Troubled Debt Restructuring

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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=49124121&loc=SL6953682-111524

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Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

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