DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Notional Amounts of All Derivative Instruments (Detail) - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Economic undesignated hedges:
Notional amount of derivatives	[1]	$ 203,020	$ 216,020
Nondesignated [Member] | Interest Rate Cap [Member] | Purchase
Economic undesignated hedges:
Notional amount of derivatives	[1]	91,510	91,510
Nondesignated [Member] | Interest Rate Cap [Member] | Written
Economic undesignated hedges:
Notional amount of derivatives	[1]	91,510	91,510
Nondesignated [Member] | Forward Contracts [Member]
Economic undesignated hedges:
Notional amount of derivatives	[1]	$ 20,000	$ 33,000

[1] Notional amounts are presented on a gross basis with no netting of offsetting exposure positions.