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Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Details) (USD $)
In Thousands, unless otherwise specified
Oct. 31, 2013
Jan. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Foreign currency translation adjustment $ 21,655 $ 25,146
Unrealized loss on derivatives (13) (12)
Pension liability 259 265
Accumulated other comprehensive income $ 21,901 $ 25,399