Commitments and Contingencies (Details) $ in Thousands, $ in Millions	3 Months Ended		6 Months Ended			50 Months Ended
	May 01, 2021 USD ($)	May 02, 2020 USD ($)	May 01, 2021 USD ($) government_entity	May 01, 2021 CAD ($) government_entity	May 02, 2020 USD ($)	May 01, 2021 USD ($)	May 01, 2021 CAD ($)	May 01, 2021 CAD ($)
Loss Contingencies [Line Items]
Total revenue | $	$ 833,927	$ 894,053	$ 1,591,057		$ 1,726,965
Canadian Grant
Loss Contingencies [Line Items]
Maximum amount of Canadian grant	46,900		$ 46,900			$ 46,900		$ 57.6
Number of Canadian government entities | government_entity			3	3
Total revenue			$ 3,800	$ 4.9		37,000	$ 45.5
Amounts receivable from grant	$ 2,200		$ 2,200			$ 2,200		$ 2.7