Business Acquisitions and License Agreement - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended	12 Months Ended			0 Months Ended
	Mar. 13, 2014	Mar. 30, 2014	Mar. 30, 2014	Mar. 31, 2013	Mar. 30, 2014 Patent License Agreement [Member]	Mar. 13, 2014 Broadcom 10/40/100Gb Ethernet Business [Member]	Mar. 13, 2014 Broadcom 10/40/100Gb Ethernet Business [Member] Developed technology [Member]	Jan. 17, 2014 Brocade Communications Systems, Inc. [Member]	Jan. 17, 2014 Brocade Communications Systems, Inc. [Member] Developed technology [Member]
Business Acquisition [Line Items]
Business acquisition, cash consideration			$ 157,352,000			$ 147,800,000		$ 9,600,000
Estimated useful life of purchased intangible assets							5 years		3 years
Amortization expense related to acquired intangible assets			12,000,000	12,000,000
Patent license agreement	62,000,000
Patent license agreement, prior periods	41,000,000	41,000,000	41,040,000
Patent license agreement, future periods	21,000,000
Patent license agreement term			10 years
Amortization of patent license agreement					100,000
Business acquisition, purchase price allocation to inventory						2,880,000		1,700,000
Business acquisition, purchase price allocation to identifiable intangible assets						$ 60,100,000		$ 8,000,000