Accounts Receivable - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 30, 2021	Jan. 25, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts at beginning of period	$ 4,582	$ 17,702
Provision for bad debt (recovery)	406	(6,540)
Amounts charged against the allowance	(3,783)	(6,580)
Allowance for doubtful accounts at end of period	1,676	4,582
Cumulative Effect, Period of Adoption, Adjustment
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts at beginning of period	$ 471	0
Allowance for doubtful accounts at end of period		$ 471