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Income Taxes (Reconciliation Of the Gross Liability For Uncertain Tax Positions) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2010
Income Tax Disclosure [Abstract]      
Liability for uncertain tax positions, beginning of year $ 9,223 $ 22,184 $ 22,740
Additions: Related to tax positions for the current year 262 1,184 9,609
Additions: Related to tax positions for prior years 1,072 77 574
Reductions: Related to tax positions for prior years 0 (205) (1,674)
Reductions: Due to settlements with tax jurisdictions (698) (12,765) (1,552)
Reductions: Due to lapses of statutes of limitations (1,213) (1,571) (4,802)
Reductions: Other reductions 0 0 (4,041)
Reductions: Effect of currency rate movement (733) 319 1,330
Liability for uncertain tax positions, end of year $ 7,913 $ 9,223 $ 22,184