Loans Receivable, Net - Analysis of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Receivables [Abstract]
Balance at beginning of period	$ 16,419	$ 20,934	$ 16,317	$ 20,930
Provision charged to operations	300	275	675	805
Charge-offs	(331)	(419)	(689)	(1,158)
Recoveries	146	146	231	359
Balance at end of period	$ 16,534	$ 20,936	$ 16,534	$ 20,936