Business Combinations - Additional Information (Detail) - USD ($) $ in Thousands				9 Months Ended
	Jul. 31, 2017	Jun. 01, 2017	Jun. 24, 2016	Nov. 30, 2017
Business Acquisition [Line Items]
Goodwill acquired				$ 64,837
Permabit Technology Corporation
Business Acquisition [Line Items]
Cash paid	$ 49,800
Goodwill acquired	39,400
Identifiable intangible assets acquired	$ 10,400
Codenvy S. A.
Business Acquisition [Line Items]
Cash paid		$ 34,200
Goodwill acquired		25,400
Identifiable intangible assets acquired		11,300
Net working capital		$ 2,500
3scale, Inc.
Business Acquisition [Line Items]
Cash paid			$ 29,100
Goodwill acquired			16,900
Identifiable intangible assets acquired			13,100
Net working capital			$ 900
General and administrative
Business Acquisition [Line Items]
Acquisition transaction costs				$ 1,300