EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Net Income
Net income attributable to common shareholders	$ 11,696	$ 9,111	$ 26,579	$ 26,434
Net income attributable to common shareholders and assumed conversions	$ 11,696	$ 9,111	$ 26,579	$ 26,434
Weighted Average Shares
Net income attributable to common shareholders (in shares)	24,016,237	21,615,263	22,786,961	21,658,088
Effect of dilutive warrants (in shares)	202,238	171,062	182,327	152,171
Effect of dilutive stock options (in shares)	103,137	110,636	101,777	103,053
Net income attributable to common shareholders and assumed conversions (in shares)	24,321,612	21,896,961	23,071,065	21,913,312
Earnings per Common Share
Net income attributable to common shareholders (in dollars per share)	$ 0.49	$ 0.42	$ 1.17	$ 1.22
Net income attributable to common shareholders and assumed conversions (in dollars per share)	$ 0.48	$ 0.42	$ 1.15	$ 1.21
Stock options
Earnings per Common Share
Common shares not considered in computing diluted earnings per share	0		0	10,210