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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2018	Jun. 30, 2018
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 413.3	$ 318.6
Diagnostics [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	347.5
Other [Member]
Goodwill And Intangible Assets [Line Items]
Goodwill	$ 65.8

X

- Definition

Goodwill and intangible assets.

+ References

No definition available.

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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

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