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Fair Value Measurements - Assets and Liabilities Measured on Recurring Basis (Details) - Recurring Basis - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Assets:
Assets	$ 77.4	$ 166.9
Liabilities:
Contingent consideration	30.9	54.7
Certificate of deposit
Assets:
Certificate of deposit	2.0	2.0
Money Market Funds
Assets:
Cash and cash equivalents—money market funds	75.4	164.9
Quoted Prices in Active Markets (Level 1)
Assets:
Assets	75.4	164.9
Liabilities:
Contingent consideration	0.0	0.0
Quoted Prices in Active Markets (Level 1) | Certificate of deposit
Assets:
Certificate of deposit	0.0	0.0
Quoted Prices in Active Markets (Level 1) | Money Market Funds
Assets:
Cash and cash equivalents—money market funds	75.4	164.9
Other Observable Inputs (Level 2)
Assets:
Assets	2.0	2.0
Liabilities:
Contingent consideration	0.0	0.0
Other Observable Inputs (Level 2) | Certificate of deposit
Assets:
Certificate of deposit	2.0	2.0
Other Observable Inputs (Level 2) | Money Market Funds
Assets:
Cash and cash equivalents—money market funds	0.0	0.0
Significant Unobservable Inputs (Level 3)
Assets:
Assets	0.0	0.0
Liabilities:
Contingent consideration	30.9	54.7
Significant Unobservable Inputs (Level 3) | Certificate of deposit
Assets:
Certificate of deposit	0.0	0.0
Significant Unobservable Inputs (Level 3) | Money Market Funds
Assets:
Cash and cash equivalents—money market funds	$ 0.0	$ 0.0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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