BUSINESS COMBINATIONS (Details 4) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Balance, beginning of the year	$ 15,578	$ 25,493	$ 25,493
Accretion	8,105	20,822	22,188
Transfers to purchased non-covered other real estate owned	2,565	1,955
Transfer from covered loans due to loss-share expiration	84	0	0
Balance, ending of year	10,701	20,741	15,578
Non Covered Loan [Member]
Balance, beginning of the year	674,239	448,753	448,753
Charge-offs, net of recoveries	(814)	0	(84)
Additions due to acquisitions	195,818	279,441	279,441
Accretion	8,055	6,171	9,745
Transfers to purchased non-covered other real estate owned	(2,565)	(1,425)	(4,160)
Transfer from covered loans due to loss-share expiration	15,462	0	15,475
Payments received	(123,311)	(59,216)	(74,931)
Other	610	0	0
Balance, ending of year	$ 767,494	$ 673,724	$ 674,239