LOANS RECEIVABLE AND ALLOWANCE FOR CREDIT LOSSES (Details 11) - Allowance for Unfunded Credit Reserve - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for unfunded credit reserves
Beginning balance	$ 20,360	$ 12,712	$ 11,282
(Reversal of) provision for unfunded credit reserves	(4,239)	7,648	1,575
Charge-offs	0	0	(145)
Ending balance	$ 16,121	$ 20,360	$ 12,712