Loans Receivable, Net - Troubled Debt Restructurings (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 SecurityLoan	Mar. 31, 2013 SecurityLoan
Subsequently Defaulted [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans
Recorded Investment
Originated by Bank [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2	3
Pre-modification Recorded Investment	331	83
Post-modification Recorded Investment	259	75
Originated by Mortgage Company [Member] | Residential Real Estate [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	1
Pre-modification Recorded Investment	188
Post-modification Recorded Investment	186
Consumer [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	2	1
Pre-modification Recorded Investment	77	2
Post-modification Recorded Investment	77	2
Consumer [Member] | Subsequently Defaulted [Member]
Financing Receivable, Modifications [Line Items]
Number of Loans	3
Recorded Investment	$ 229