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Loans Receivable, Net - Analysis of Allowance for Loan Losses (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Allowance for Loan and Lease Losses [Roll Forward]    
Balance at beginning of period $ 15,183 $ 16,722
Provision charged to operations 700 563
Charge-offs (205) (1,172)
Recoveries 473 101
Balance at end of period $ 16,151 $ 16,214