Canadian Emergency Wage Subsidy - Narrative (Details) $ in Thousands, $ in Millions	3 Months Ended			6 Months Ended
	May 01, 2021 CAD ($)	May 01, 2021 USD ($)	May 02, 2020 USD ($)	May 01, 2021 CAD ($)	May 01, 2021 USD ($)	May 02, 2020 USD ($)	May 01, 2021 USD ($)
Canadian Emergency Wage Subsidy
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit	$ 51.1	$ 40,400	$ 0	$ 51.1	$ 40,400	$ 0
Amounts receivable from grant	$ 4.8			4.8			$ 3,900
Grants, Canada Emergency Wage Subsidy, 2020 Employee Wages
Unusual or Infrequent Item, or Both [Line Items]
Total CEWS benefit				$ 43.9	$ 34,700