EARNINGS PER SHARE ("EPS") (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
EARNINGS PER SHARE ("EPS") [Abstract]
Net income per the Consolidated Statements of Income	$ 4,705	$ 13,035	$ 11,501	$ 11,782	$ 12,321	$ 14,745	$ 29,241	$ 38,848
Less: Dividends paid and earnings allocated to participating securities	(78)			(41)			(172)	(113)
Income attributable to common stock	$ 4,627			$ 11,741			$ 29,069	$ 38,735
Weighted average common shares outstanding, including participating securities (in shares)	35,861,268			37,220,933			35,922,521	37,428,595
Less: weighted average participating securities (in shares)	(229,881)			(154,775)			(197,430)	(156,311)
Weighted average common shares outstanding (in shares)	35,631,387			37,066,158			35,725,091	37,272,284
Basic EPS (in dollars per share)	$ 0.13			$ 0.32			$ 0.81	$ 1.04
Income attributable to common stock	$ 4,627			$ 11,741			$ 29,069	$ 38,735
Weighted average common shares outstanding (in shares)	35,631,387			37,066,158			35,725,091	37,272,284
Weighted average common equivalent shares outstanding (in shares)	138,074			123,490			140,968	127,456
Weighted average common and equivalent shares outstanding (in shares)	35,769,461			37,189,648			35,866,059	37,399,740
Diluted EPS (in dollars per share)	$ 0.13			$ 0.32			$ 0.81	$ 1.04
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Weighted average shares excluded from earnings per share calculation (in shares)	0			0			0	0