COMMON STOCK REPURCHASES (Details) (USD $)	3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Remaining shares authorized for repurchase under program	650,917
Shares repurchased	281,583	235,468
Total cost of shares repurchased	$ 12,400,000	$ 10,800,000
Average cost per share of shares repurchased	$ 44.17	$ 45.72
Value of shares withheld in satisfaction of employee tax withholding obligations	$ 5,787,000	$ 4,026,000