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Debt (Schedule Of Debt) (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2011
Jan. 31, 2011
Debt [Abstract]    
Convertible debt obligations $ 2,195 $ 2,195
Term loan 598,500 583,234
Unamortized debt discount on term loan (2,790)  
Line of credit   6,000
Other debt 3,193  
Total debt 601,098 591,429
Less: current portion 8,403 8,195
Total long-term debt $ 592,695 $ 583,234