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Other Long Term Liabilities - Summary of Other Long Term Liabilities (Detail) - USD ($) $ in Millions | Mar. 31, 2017 | Jun. 30, 2016
--- | --- | ---
Other Long Term Liabilities [Line Items] |  |
Contingent consideration | $ 14.3 | $ 10.4
Pension obligation | 5.9 | 5.9
Other | 1.3 | 1.9
Total other long term liabilities | 21.5 | 18.2
Sividon Diagnostics GmbH [Member] |  |
Other Long Term Liabilities [Line Items] |  |
Contingent consideration | $ 14.3 | $ 10.4

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