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Fair Value Measurement - Summary of Additional Information Regarding Contingent Liabilities that are Measured at Fair Value on a Recurring Basis (Details) - Fair Value, Recurring - USD ($) $ in Millions | Jun. 30, 2020 | Dec. 31, 2019
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Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities | $ 0.6 | $ 32.3
Significant Observable Inputs (Level 3) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities | 0.6 | 32.3
Earnout Payments |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities | 0.6 | 1.9
Earnout Payments | Significant Observable Inputs (Level 3) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities | $ 0.6 | 1.9
Change of Control |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities |  | 30.4
Change of Control | Significant Observable Inputs (Level 3) |  |
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items] |  |
Total contingent liabilities |  | $ 30.4

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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. + References No definition available. + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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