PARENT COMPANY ONLY CONDENSED FINANCIAL INFORMATION (Details 1) - USD ($) $ in Thousands	3 Months Ended														12 Months Ended
	Dec. 31, 2016		Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016		Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Condensed financial information
Interest expense															$ 16,845	$ 10,129	$ 7,460
Non-interest expense															77,081	72,890	52,414
Income tax benefit															18,795	10,778	7,239
Net income															35,491	21,111	13,763
Parent Company
Condensed financial information
Dividends from the Bank															14,800	10,000
Interest expense	$ 4,450		$ 4,077	$ 4,143	$ 4,175		$ 3,705		$ 2,659		$ 1,953		$ 1,812		5,903	2,626	1,365
Non-interest expense	18,529	[1]	19,204	20,441	18,907	[2]	18,173	[3]	19,373	[4]	22,034	[5]	13,310	[6]	260	73	86
Income (loss) before income taxes and equity in undistributed earnings of the Bank															8,637	7,301	(1,451)
Income tax benefit	4,824		4,663	4,664	4,644		4,147		4,248		(243)		2,626		(2,126)	(933)	(463)
Income (loss) before equity in undistributed earnings of the Bank															10,763	8,234	(988)
Equity in undistributed earnings of the Bank															24,728	12,877	14,751
Net income	$ 9,160		$ 8,851	$ 8,854	$ 8,626		$ 7,995		$ 7,890		$ 463		$ 4,763		$ 35,491	$ 21,111	$ 13,763

[1] 2016 amount includes reversal of costs associated with the CNB and FNBNY acquisitions of $0.7 million.

[2] 2016 amount includes reversal of costs associated with the CNB and FNBNY acquisitions of $0.3 million.

[3] 2015 amount includes costs associated with the CNB acquisition of $0.5 million.

[4] 2015 amount includes costs associated with the CNB acquisition of $0.9 million.

[5] 2015 amount includes costs associated with the CNB acquisition of $8.2 million.

[6] 2015 amount includes costs associated with the CNB acquisition of $0.2 million.