Leases - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Leases [Abstract]
Operating lease cost	$ 2.2	$ 2.4	$ 6.4	$ 7.1
Operating lease, payments	$ 2.5	$ 2.8	$ 7.2	$ 7.6
Weighted average remaining lease term for operating leases	5 years 8 months 12 days	4 years 2 months 12 days	5 years 8 months 12 days	4 years 2 months 12 days
Weighted average discount rate for operating leases	5.10%	5.00%	5.10%	5.00%