NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Changes in Servicing Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Servicing Assets At Amortized Value [Line Items]
Balance at beginning of period	$ 22,270		$ 19,979		$ 21,987		$ 17,524
Capitalization of servicing assets	1,075		2,653		3,144		6,467
Amortization	(772)		(765)		(2,345)		(2,351)
Adjustment to servicing assets for loans repurchased	(24)	[1]	(14)	[1]	(57)	[1]	(344)	[1]
Adjustment to fair value	(46)		32		(226)		589
Balance at end of period	$ 22,503		$ 21,885		$ 22,503		$ 21,885

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