COMMON STOCK REPURCHASES (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended			12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Mar. 31, 2018	Nov. 28, 2018
Equity [Abstract]
Number of shares authorized to be repurchased	1,700,000.0				1,000,000
Remaining shares authorized for repurchase under program	1,602,135
Shares of common stock repurchased in the open market (in shares)			1,138,903	127,970
Value of common stock repurchased in the open market	$ 4,780	$ 52,915
Average price per share (in dollars per share)			$ 46.46	$ 37.35
Value of shares withheld in satisfaction of employee tax obligations	$ 13,863	$ 11,186	$ 11,186