Commitments and Contingencies - Contingent Consideration Liabilities (Detail) - USD ($) $ in Millions |
Sep. 30, 2018 |
Dec. 31, 2017 |
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| Level 3 | ||
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||
| Fair value of contingent consideration liability | $ 74.3 | $ 65.7 |
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- Definition Amount of liability recognized arising from contingent consideration in a business combination. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Details
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