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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Apr. 30, 2017 USD ($) | Jun. 27, 2020 USD ($) Segment | Jun. 29, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Jun. 25, 2011 | Apr. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Transfer amount of assets of level one |  | $ 0 | $ 0 |  |  |  |
Transfer amount of assets of level two |  | 0 | 0 |  |  |  |
Transfer amount of assets of level three |  | 0 | 0 |  |  |  |
Transfer amount of assets out of level three |  | 0 | 0 |  |  |  |
Retained earnings |  | 701,400,000 | 583,500,000 |  |  |  |
Account receivable bad debt |  | 0 |  |  |  |  |
Contract asset |  | 400,000 | 900,000 |  |  |  |
Contract liability |  | 3,200,000 | 4,500,000 |  |  |  |
Refund liability |  | 25,800,000 | 47,500,000 |  |  |  |
Revenue recognized related to contract liabilities |  | $ 2,000,000.0 | 300,000 |  |  |  |
Description of payment terms in contract with customer |  | Payments are generally due within three months of completion of the performance obligation and subsequent invoicing and, therefore, do not include significant financing components. |  |  |  |  |
Provision for bad debt reserves |  | $ 3,700,000 |  |  |  |  |
Net gain (loss) on foreign currency transactions |  | $ 200,000 | (1,100,000) | $ (1,100,000) |  |  |
Number of reporting units | Segment |  | 2 |  |  |  |  |
Goodwill impairment |  | $ 0 | 0 |  | $ 0 |  |
Cost of revenue |  | 790,800,000 | 975,100,000 | 1,150,200,000 |  |  |
Research and development |  | 302,500,000 | 342,700,000 | 363,200,000 |  |  |
Selling, general, and administrative |  | $ 127,000,000.0 | 131,300,000 | 154,000,000.0 |  |  |
Number of operating segments | Segment |  | 1 |  |  |  |  |
Contractual life of grant option |  |  |  |  |  | 7 years |
Performance stock units outstanding [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Earlier Options vesting period |  | 3 years |  |  |  |  |
Requisite service period |  | 3 years |  |  |  |  |
Market stock units outstanding [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Earlier Options vesting period |  | 3 years |  |  |  |  |
Requisite service period |  | 3 years |  |  |  |  |
Retention Agreements [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Cost of revenue |  | $ 500,000 |  | 0 |  |  |
Research and development |  | 8,400,000 | 1,500,000 | 0 |  |  |
Selling, general, and administrative |  | 5,000,000.0 | 900,000 | $ 0 |  |  |
Thin Touch Developed Technology [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Impairment of acquired intangibles |  | $ 0 | 0 |  | $ 0 |  |
OXi Technology Ltd [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Equity method investment | $ 18,400,000 |  |  |  |  |  |
Equity method investment, ownership percentage | 14.40% |  |  |  |  |  |
Equity method investment, ownership reduced percentage |  |  |  |  |  |  | 13.80%
Maximum [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Revenue, performance obligation, payment terms |  | 3 months |  |  |  |  |
Maximum [Member] | Restricted 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 |  |  |  |  |
Minimum [Member] | Restricted 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 |  |  |  |  |
Accounting Standards Update 2014-09 [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Remaining unsatisfied performance obligation |  | $ 0 |  |  |  |  |
Cumulative Impact of Adopting Topic 606 [Member] | Accounting Standards Update 2014-09 [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Retained earnings |  |  | 0 |  |  |  |
0.50% Convertible Senior Notes due 2022 [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Debt instrument aggregate principal amounts |  | 525,000,000.0 |  |  |  |  |
Convertible notes |  | 542,500,000 |  |  |  |  |
Level 1 [Member] | Money Market Funds [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Available-for-sale securities, debt securities |  | 521,100,000 | 313,700,000 |  |  |  |
Money Market Funds [Member] |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |
Available-for-sale securities, debt securities |  | $ 521,100,000 | $ 313,700,000 |  |  |  |

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