Loans Receivable, Net - Troubled Debt Restructurings (Detail) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2015 USD ($) SecurityLoan	Jun. 30, 2014 USD ($) SecurityLoan	Jun. 30, 2015 USD ($) SecurityLoan	Jun. 30, 2014 USD ($) SecurityLoan
Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	2	1	4	4
Pre-modification Recorded Investment	$ 268	$ 358	$ 517	$ 882
Post-modification Recorded Investment	$ 231	$ 358	$ 480	$ 805
Commercial Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	1		3
Pre-modification Recorded Investment	$ 3,939		$ 6,033
Post-modification Recorded Investment	$ 3,939		$ 5,944
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans \| SecurityLoan	4	3	8	5
Pre-modification Recorded Investment	$ 259	$ 93	$ 395	$ 168
Post-modification Recorded Investment	$ 243	$ 97	$ 379	$ 171
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

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.

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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=35738203&loc=SL6953676-111524

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