STOCKHOLDERS' EQUITY (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 27, 2017	Mar. 31, 2018 USD ($) $ / shares shares	Mar. 31, 2017 USD ($) $ / shares shares	Apr. 26, 2018 shares	Aug. 15, 2017 shares
Stock Split and Treasury Stock [Abstract]
Stock split ratio	2		2
Treasury stock, retired value | $			$ 0
Share Repurchase Plan [Abstract]
Authorized number of shares under stock repurchase program (in shares)					500,000
Common stock repurchased during the period (in shares)		409,839	656,962
Average cost of share repurchased (in dollars per share) | $ / shares		$ 77.18	$ 40.81
Common stock repurchased during the period | $		$ 31,600	$ 26,800
Shares repurchased to satisfy tax withholding obligation (in shares)		57,725	59,472
Value of shares repurchased to satisfy tax withholding obligation | $		$ 4,400	$ 2,600
Subsequent Event [Member]
Share Repurchase Plan [Abstract]
Authorized number of shares under stock repurchase program (in shares)				500,000
Treasury Stock [Member]
Stock Split and Treasury Stock [Abstract]
Treasury stock, retired (in shares)			6,200,000
Treasury stock, retired value | $			$ 158,948