CALCULATION OF WEIGHTED AVERAGE SHARES OUTSTANDING FOR EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Earnings Per Share [Abstract]
Net income	$ 23,851	$ 12,947	$ 62,581	$ 38,329	$ 45,222
Basic weighted average shares outstanding	34,045,225	20,755,394	34,050,459	20,417,601
Plus unvested restricted stock	79,386	65,983	54,416	50,008
Diluted weighted shares outstanding	34,124,611	20,821,377	34,104,875	20,467,609
Earnings per common share
Basic	$ 0.70	$ 0.62	$ 1.84	$ 1.88
Diluted	$ 0.70	$ 0.62	$ 1.83	$ 1.87