ASSETS ACQUIRED IN FDIC-ASSISTED ACQUISITIONS (Details 3) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Business Combinations
Balance, beginning of year	$ 9,063	$ 15,578	$ 15,578
Accretion	(1,487)	(4,466)	(9,658)
Transfer to purchased, non-covered loans due to loss-share expiration	0	0	(1,665)
Transfers between non-accretable and accretable discounts, net	366	1,853	4,808
Balance, ending of year	$ 7,942	$ 12,965	$ 9,063