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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
Mar. 31, 2011
Mar. 31, 2010
CONSOLIDATED BALANCE SHEETS    
Software, accumulated amortization (in dollars) $ 214,713 $ 198,410
Purchased software licenses, accumulated amortization (in dollars) $ 257,029 $ 253,434
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, authorized shares 200 200
Common stock, issued shares 117.8 116.6
Treasury stock, shares 37.2 37.2