Segment Disclosure - Revenues Related to Operations by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 834,381	$ 820,401
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	408,489	407,799
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	94,370	83,886
Korea
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	89,515	102,668
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	72,228	65,073
Asia-Pacific and Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	$ 169,779	$ 160,975