Segment Disclosure - Revenues Related to Operations by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 652,786	$ 568,604
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	319,418	274,930
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	75,604	71,935
Japan
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	61,698	53,246
Asia-Pacific and Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Consolidated	$ 196,066	$ 168,493