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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2015 | Aug. 31, 2016
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 316,100,000 | $ 195,300,000 | $ 177,200,000 |
Impairment of goodwill | 0 | 0 | 0 |
Goodwill associated with the acquisition | 116,300,000 | 17,700,000 |  |
Impairment of long-lived assets | 0 | $ 0 | $ 0 |
2018 | 37,200,000 |  |  |
2019 | 37,200,000 |  |  |
2020 | 36,900,000 |  |  |
2021 | 36,900,000 |  |  |
2022 | 36,900,000 |  |  |
Thereafter | $ 283,400,000 |  |  |
Developed Technology and Database [Member] | Minimum [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 14 years |  |  |
Developed Technology and Database [Member] | Maximum [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 19 years |  |  |
Trademarks [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 11 years |  |  |
Weighted average remaining amortization period | 14 years |  |  |
Customer Relationships [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Estimated useful life | 4 years |  |  |
Weighted average remaining amortization period | 14 years |  |  |
Purchased Licenses and Technologies [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Weighted average remaining amortization period | 14 years |  |  |
Assurex [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 119,100,000 |  |  | $ 116,300,000
Diagnostics [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | 250,500,000 |  |  |
Diagnostics [Member] | Assurex [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill associated with the acquisition | 119,100,000 |  |  |
Other [Member] |  |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |  |
Goodwill | $ 65,600,000 |  |  |

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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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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + 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 during the third 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + 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 during the second 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 Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
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