Leases - Components Of Lease Expense (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Leases [Abstract]
Operating lease expense	[1]	$ 22,159	$ 23,349	$ 44,191	$ 46,975
Variable lease expense	[2]	2,870	1,842	4,993	3,177
Total lease expense		$ 25,029	$ 25,191	$ 49,184	$ 50,152

[1] Operating lease expense includes immaterial amounts of short-term leases, net of sublease income.

[2] Variable lease expense includes payments to lessors that are not fixed or determinable at lease commencement date. These payments primarily consist of maintenance, property taxes, insurance and variable indexed based payments.