Loans - Summary of Defaulted TDRs (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
SecurityLoan
Dec. 31, 2012
SecurityLoan
Dec. 31, 2011
SecurityLoan
Financing Receivable Modifications Number Of Contracts [Line Items]      
Construction 5 8 12
Recorded Investment $ 3,544 $ 2,938 $ 7,872
Defaulted Trouble Debt Restructuring Ninety Days Past Due [Member]
     
Financing Receivable Modifications Number Of Contracts [Line Items]      
Construction 1 5 5
Recorded Investment 207 908 6,843
Defaulted Trouble Debt Restructuring Ninety Days Past Due [Member] | One-to Four-Family [Member]
     
Financing Receivable Modifications Number Of Contracts [Line Items]      
Construction    5 3
Recorded Investment    908 812
Defaulted Trouble Debt Restructuring Ninety Days Past Due [Member] | Construction [Member]
     
Financing Receivable Modifications Number Of Contracts [Line Items]      
Construction 1    2
Recorded Investment $ 207    $ 6,031