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Accounts Receivable - Narratives (Details) - USD ($)
$ in Thousands
Oct. 26, 2019
Jan. 26, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Accounts Receivable, Net $ 919,496 $ 625,258
Accounts Receivable, Net, Current $ 919,496 $ 625,258