Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 21,913	$ 18,637	$ 64,516	$ 52,766
ROU assets obtained in exchange for operating lease liabilities	$ 10,742	$ 27,063	$ 92,149	$ 56,846