NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Components of Net Servicing Income (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Servicing fees		$ 1,930	$ 1,796	$ 5,657	$ 5,340
Late charges and prepayment penalties		200	179	505	546
Other	[1]	0	(22)	(1)	(125)
Adjustment To Servicing Assets For Loans Repurchased	[2]	91	(20)	126	(88)
Servicing income, gross		2,221	1,933	6,287	5,673
Amortization and impairment of servicing assets		(1,080)	(781)	(2,811)	(2,579)
Servicing income, net		$ 1,141	$ 1,152	$ 3,476	$ 3,094

[1] Mainly consisted of compensatory fees imposed by GSEs.

[2] Amount represents the adjustment to fair value related to the repurchase of loans serviced for others.