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Short-Term Borrowings (Details) - USD ($)
$ in Thousands
Jan. 31, 2016
Jan. 31, 2015
Short-term Debt [Line Items]    
Senior revolving credit facility $ 25,000 $ 0
Collections of previously sold accounts receivable 7,568 5,917
Other short-term borrowings 881 1,311
Short-term borrowings $ 33,449 $ 7,228