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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 417,200,000 | $ 318,600,000 | [1] | $ 316,100,000
Impairment of goodwill | 0 | 0 |  | 0
Impairment of long-lived assets | 0 | $ 0 |  | $ 0
Estimated amortization expenses of intangible assets for 2020 | 52,000,000.0 |  |  |
Estimated amortization expenses of intangible assets for 2021 | 51,900,000 |  |  |
Estimated amortization expenses of intangible assets for 2022 | 45,000,000.0 |  |  |
Estimated amortization expenses of intangible assets for 2023 | 43,700,000 |  |  |
Estimated amortization expenses of intangible assets for 2024 | 43,400,000 |  |  |
Estimated amortization expenses of intangible assets after 2024 | $ 425,800,000 |  |  |
Developed Technology and Database [Member] | Minimum [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 3 years |  |  |
Developed Technology and Database [Member] | Maximum [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 15 years |  |  |
Trademarks [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 10 years |  |  |
Weighted average remaining amortization period | 12 years |  |  |
Customer Relationships [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 3 years |  |  |
Weighted average remaining amortization period | 12 years |  |  |
Purchased Licenses and Technologies [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Weighted average remaining amortization period | 12 years |  |  |
Diagnostics [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 351,600,000 |  |  |
Other [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 65,600,000 |  |  |
[1] | Amounts adjusted due to the adoption of Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606). See Note 1 to the financial statements of this report for additional information.

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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