Segment Disclosure - Revenues Related to Operations by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2018	Jan. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 769,426	$ 652,786
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	384,574	319,418
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	85,465	75,604
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	68,389	61,698
Asia-Pacific and Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 230,998	$ 196,066