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NON-CONSOLIDATED VARIABLE INTEREST ENTITIES AND SERVICING ASSETS - Changes in Servicing Assets (Detail) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Transfers and Servicing [Abstract]
Balance at beginning of period		$ 27,191	$ 26,502	$ 25,255	$ 26,244
Capitalization of servicing assets		1,003	833	3,028	2,757
Amortization		(722)	(775)	(2,188)	(2,342)
Adjustment to fair value		(65)	(690)	1,265	(1,047)
Adjustment to servicing assets for loans repurchased	[1]	(186)	(129)	(233)	(387)
Balance at end of period		$ 27,593	$ 25,999	$ 27,593	$ 25,999
[1] Amount represents the adjustment to fair value related to the repurchase of loans serviced for others.

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- Definition

Amortized amount of contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount of additions from purchases, assumption or transfer to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

+ References

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Amount of other increase (decrease) to contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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Amount of increase (decrease) in the amortized amount from a decrease (increase) in the valuation allowance applied to the servicing asset for a contract to service financial assets under which the benefits of servicing are expected to more than adequately compensate the servicer.

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