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Employee Benefit Plans (Narrative) (Details)
$ in Millions
6 Months Ended
Aug. 01, 2016
Jan. 31, 2017
USD ($)
plan
Defined Benefit Plan Disclosure [Line Items]    
Number of U.S. plans | plan   2
Annual company retirement contribution in addition to 401 (k) match, percent 3.00%  
Non-U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Company contributions   $ 0.9
Additional future contribution towards pension plans for the remainder of Fiscal 2017   2.4
U.S. Pension Plans    
Defined Benefit Plan Disclosure [Line Items]    
Company contributions   1.3
Estimated future contributions to pension plans   $ 9.7