Loans Receivable, Net - Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2016 USD ($) SecurityLoan	Sep. 30, 2015 USD ($) SecurityLoan	Sep. 30, 2016 USD ($) SecurityLoan	Sep. 30, 2015 USD ($) SecurityLoan
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1		3	4
Pre-modification Recorded Investment	$ 455		$ 674	$ 509
Post-modification Recorded Investment	$ 455		$ 673	$ 472
Commercial Real Estate - Owner Occupied [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan		1
Pre-modification Recorded Investment		$ 63
Post-modification Recorded Investment		$ 63
Commercial Real Estate - Investor [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan			1	4
Pre-modification Recorded Investment			$ 256	$ 6,095
Post-modification Recorded Investment			$ 270	$ 5,944
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1	1	3	9
Pre-modification Recorded Investment	$ 602	$ 207	$ 665	$ 599
Post-modification Recorded Investment	$ 602	$ 170	$ 665	$ 547
Subsequently Defaulted [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	0	0	0	0
Recorded Investment	$ 0	$ 0	$ 0	$ 0

Financing Receivable Modifications Post Modification Recorded Investment During Period

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- Definition

Financing Receivable Modifications Pre Modification Recorded Investment During Period

+ References

No definition available.

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- Definition

Trouble Debt Restructuring Modifications Recorded Investment

+ References

No definition available.

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- Definition

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+ References

No definition available.

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- Definition

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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