COMMON STOCK REPURCHASES (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Equity [Abstract]
Remaining shares authorized for repurchase under program	1,020,990
Shares repurchased	613,021	8,492,117
Total cost of shares repurchased	$ 26,828	$ 473,220
Average cost per share of shares repurchased	$ 43.76	$ 55.72
Value of shares withheld in satisfaction of employee tax withholding obligations	$ 9,123	$ 10,499