COMMON STOCK REPURCHASES (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Equity [Abstract]
Remaining shares authorized for repurchase under program	3,578,268
Shares repurchased	5,132,784	281,583
Total cost of shares repurchased	$ 284,444	$ 12,438
Average cost per share of shares repurchased	$ 55.42	$ 44.17
Value of shares withheld in satisfaction of employee tax withholding obligations	$ 9,903	$ 5,787