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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions | Dec. 31, 2018 | Jun. 30, 2018 | [1]
--- | --- | --- | ---
Goodwill And Intangible Assets [Line Items] |  |
Goodwill | $ 413.2 | $ 318.6
Diagnostics [Member] |  |
Goodwill And Intangible Assets [Line Items] |  |
Goodwill | 347.5 |
Other [Member] |  |
Goodwill And Intangible Assets [Line Items] |  |
Goodwill | $ 65.7 |
[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 contained in Part I, Item 1 of this report for additional information.

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- Definition Goodwill and intangible assets. + References No definition available. + 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://fasb.org/us-gaap/role/ref/legacyRef -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 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
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