Liabilities and Restructuring Charges - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 15,151	$ (1,977)	$ 15,151	$ 36,446
2021 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Employee related restructuring liabilities	6,800		6,800
2021 Restructuring Plan | Severance and Termination
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15,100		15,100
Cash payments	8,300		8,300
Minimum | 2021 Restructuring Plan | Severance, Termination, and Retirement Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	42,000		42,000
Maximum | 2021 Restructuring Plan | Severance, Termination, and Retirement Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost	$ 53,000		$ 53,000