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Risk Management and Derivatives (Narrative) (Details)
3 Months Ended 12 Months Ended
May 04, 2019
May 05, 2018
Feb. 02, 2019
Derivative [Line Items]      
Derivative, Maturity Date May 01, 2020    
Forward Contracts      
Derivative [Line Items]      
Derivative Maturity May 01, 2020 May 01, 2019 Jan. 01, 2020