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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) ¥ in Millions	12 Months Ended
	Jun. 25, 2016 USD ($) Segment	Jun. 27, 2015 USD ($)	Jun. 28, 2014 USD ($)	Jun. 29, 2013	Jun. 25, 2011	Jun. 30, 2016 USD ($)	Mar. 31, 2015 USD ($)	Mar. 31, 2015 JPY (¥)
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Contingent consideration liability recorded for business acquisition							$ 48,600,000	¥ 5,780
Transfer amount of assets or liabilities of level one	$ 0	$ 0
Transfer amount of assets or liabilities of level two	0	0
Transfer amount of assets or liabilities of level three	0	0
Contingent consideration liability out of level 3 liabilities	25,500,000
Acquisition-related liabilities	25,500,000	102,200,000
Goodwill impairment	0	0	$ 0
Impairment of acquired intangibles	$ 6,700,000
Number of operating segments | Segment	1
Contractual life of grant option					7 years
Contractual life of Grant option					10 years
Earlier Options vesting period	4 years			3 years
Earlier Options vesting period				4 years
Market stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	3 years
Minimum [Member] | Deferred stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	3 years
Minimum [Member] | Stock option outstanding[Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	3 years
Maximum [Member] | Deferred stock units outstanding [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	4 years
Maximum [Member] | Stock option outstanding[Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	4 years
Maximum [Member] | Employee stock purchase plan [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Earlier Options vesting period	2 years
Thin Touch Developed Technology [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Impairment of acquired intangibles	$ 6,700,000
Intangible assets	0
Renesas SP Drivers, Inc. [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net gain (loss) on foreign currency transactions	5,800,000	14,700,000
Level 3 [Member] | Other Noncurrent Liabilities [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Contingent consideration liability recorded for business acquisition	0	500,000
Level 3 [Member] | Other Current Liabilities [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Contingent consideration liability recorded for business acquisition	0	43,700,000
Subsequent Event [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Foreign currency forward contracts outstanding amount						$ 0
Forward Contracts [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Net gain (loss) on foreign currency transactions	$ 4,800,000	$ (1,300,000)
Forward Contracts [Member] | Subsequent Event [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Foreign currency forward contracts outstanding amount						$ 0

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