COMMON STOCK REPURCHASES (Details) (USD $)	3 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	646,439
Treasury Stock, Shares, Acquired	235,468	529,000
Treasury Stock, Value, Acquired, Cost Method	$ 10,800,000	$ 16,500,000
Treasury Stock Acquired, Average Cost Per Share	$ 45.72	$ 31.14
Employees' Taxes Withheld And Paid For Restricted Stock And Restricted Stock Units	$ 4,026,000	$ 1,290,000