Loans Receivable and Allowance for Loan Losses (Schedule of Troubled Debt Restructurings) (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2016 USD ($) SecurityLoan	Mar. 31, 2015 USD ($) SecurityLoan
Residential [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	2
Pre-Modification Outstanding Recorded Investment	$ 0	$ 322
Post-Modification Outstanding Recorded Investment	$ 0	$ 321
Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 2,600
Post-Modification Outstanding Recorded Investment	$ 0	$ 347
Mortgage Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	3
Pre-Modification Outstanding Recorded Investment	$ 0	$ 2,922
Post-Modification Outstanding Recorded Investment	$ 0	$ 668
Commercial Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	4
Pre-Modification Outstanding Recorded Investment	$ 0	$ 6,659
Post-Modification Outstanding Recorded Investment	$ 0	$ 6,898
Consumer Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	1
Pre-Modification Outstanding Recorded Investment	$ 0	$ 44
Post-Modification Outstanding Recorded Investment	$ 0	$ 42
Finance Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Number of Loans \| SecurityLoan	0	8
Pre-Modification Outstanding Recorded Investment	$ 0	$ 9,625
Post-Modification Outstanding Recorded Investment	$ 0	$ 7,608

Number of financing receivables that have been modified by troubled debt restructurings.

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=49124121&loc=SL6953676-111524

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

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