BUSINESS COMBINATIONS (Details 5) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of the year	$ 15,578	$ 25,493	$ 25,493
Accretion of discount	8,055	5,840
Transfers between non-accretable and accretable discounts, net	3,312	16,070	12,273
Balance, ending of year	10,701	20,741	15,578
Non Covered Loan [Member]
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of the year	674,239	448,753	448,753
Additions due to acquisitions	195,818	279,441	279,441
Balance, ending of year	767,494	673,724	674,239
Discount Accretion [Member] | Non Covered Loan [Member]
Schedule Of Covered Loans Acquired Accretable Discounts [Line Items]
Balance, beginning of the year	25,716	26,189	26,189
Additions due to acquisitions	4,686	7,799	7,799
Accretion of discount	(8,055)	(5,840)	(9,745)
Accretable discounts removed due to charge-offs	(1,686)	0	0
Transfers between non-accretable and accretable discounts, net	(106)	916	1,473
Balance, ending of year	$ 20,555	$ 29,064	$ 25,716