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Income Taxes (Schedule Of U.S. And Foreign Components Of Income Before Income Taxes And Other Items) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Income Tax Disclosure [Abstract]      
United States $ 9,156 $ (4,161) $ 21,773
Foreign 221,534 211,446 140,205
Total $ 230,690 $ 207,285 $ 161,978