SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Earnings Per Share [Abstract]
Net income	$ 15,027	$ 7,949	$ 46,946	$ 26,619
Net income allocated to unvested restricted stock	(119)	(59)	(404)	(230)
Net income allocated to common shares	$ 14,908	$ 7,890	$ 46,542	$ 26,389
Weighted average shares outstanding:
Basic	29,799	29,320	29,685	29,162
Effect of dilutive securities	500	293	479	303
Diluted	30,299	29,613	30,164	29,465
Basic income per common share	$ 0.50	$ 0.27	$ 1.57	$ 0.90
Diluted income per common share	$ 0.49	$ 0.27	$ 1.54	$ 0.90