COMMON STOCK REPURCHASES (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Equity [Abstract]
Remaining shares authorized for repurchase under program	617,128
Shares repurchased	252,707	441,738
Total cost of shares repurchased	$ 13,492	$ 18,639
Average cost per share of shares repurchased (in dollars per share)	$ 53.39	$ 42.19
Value of shares withheld in satisfaction of employee tax withholding obligations	$ 10,485	$ 8,792