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Other Long Term Liabilities - Additional Information (Detail) $ in Millions | Mar. 31, 2017 USD ($) plan | Jun. 30, 2016 USD ($)
--- | --- | ---
Other Long Term Liabilities [Line Items] |  |
Number of defined benefit pension plans | plan | 2 |
Fair value of plan assets | $ 0.1 |
Net pension liability | 5.9 | $ 5.9
Short-term contingent consideration | 128.2 |
Assurex [Member] |  |
Other Long Term Liabilities [Line Items] |  |
Short-term contingent consideration | $ 128.2 |

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- Definition Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph b -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476 + Details
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