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Intangible Assets (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
Jan. 31, 2014
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]  
2014 $ 28.5
2015 22.0
2016 20.3
2017 19.6
2018 $ 17.6