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Segment and Related Information - Schedule Of Comparison Of Balance Sheet Assets By Operating Segment (Detail) - USD ($) $ in Millions | Jun. 30, 2016 | Jun. 30, 2015
--- | --- | ---
Segment Reporting Information [Line Items] |  |
Net equipment, leasehold improvements and property | $ 58.3 | $ 67.2
Total assets by segment | 880.5 | 766.2
Operating Segments |  |
Segment Reporting Information [Line Items] |  |
Total assets by segment | 641.6 | 580.8
Diagnostics |  |
Segment Reporting Information [Line Items] |  |
Net equipment, leasehold improvements and property | 26.3 | 34.5
Total assets by segment | 512.4 | 450.6
Other |  |
Segment Reporting Information [Line Items] |  |
Net equipment, leasehold improvements and property | 32.0 | 32.7
Total assets by segment | $ 129.2 | $ 130.2

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