Summary of Loans Restructured by Class (Detail) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($) Contract	Jun. 30, 2016 USD ($) Contract	Jun. 30, 2015 USD ($) Contract
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	15	2	15
Pre-Modification Outstanding Recorded Investment	$ 19,584	$ 12,056	$ 19,584
Post-Modification Outstanding Recorded Investment	$ 19,584	$ 12,056	$ 19,584
Commercial [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	14	2	14
Pre-Modification Outstanding Recorded Investment	$ 19,463	$ 12,056	$ 19,463
Post-Modification Outstanding Recorded Investment	$ 19,463	$ 12,056	$ 19,463
Real Estate Loan [Member]
Financing Receivable, Modifications [Line Items]
Number of Contracts \| Contract	1		1
Pre-Modification Outstanding Recorded Investment	$ 121		$ 121
Post-Modification Outstanding Recorded Investment	$ 121		$ 121

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Number of 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 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953676-111524

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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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