Summary of Fair Value of Consideration Transferred (Detail) - Ruckus Wireless and ICX Switch business (Ruckus Networks) $ in Thousands	Dec. 01, 2017 USD ($)
Business Acquisition [Line Items]
Cash consideration	$ 779,743
Estimated working capital adjustments	(16,371)
Non-cash consideration	(2,359)	[1]
Total consideration transferred	$ 761,013

[1] Non-cash consideration represents a $2.4 million settlement of preexisting payables and receivables between Ruckus Networks and ARRIS.