COMMITMENTS AND CONTINGENCIES (Details) $ in Thousands, $ in Millions	3 Months Ended		6 Months Ended			62 Months Ended
	Apr. 30, 2022 USD ($)	May 01, 2021 USD ($)	Apr. 30, 2022 USD ($) government_entity	Apr. 30, 2022 CAD ($) government_entity	May 01, 2021 USD ($)	Apr. 30, 2022 USD ($)	Apr. 30, 2022 CAD ($)	Apr. 30, 2022 CAD ($)
Loss Contingencies [Line Items]
Total revenue | $	$ 949,227	$ 833,927	$ 1,793,670		$ 1,591,057
Canadian Grant
Loss Contingencies [Line Items]
Maximum amount of Canadian grant	44,800		$ 44,800			$ 44,800		$ 57.6
Number of Canadian government entities | government_entity			3	3
Total revenue			$ 5,200	$ 6.6		44,800	$ 57.6
Amounts receivable from grant	$ 2,600		$ 2,600			$ 2,600		$ 3.3