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Business Acquisitions - Additional Information (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended		9 Months Ended
	May 31, 2021	Mar. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill deductible for tax purposes				$ 49.6
Wave Optics
Business Acquisition [Line Items]
Business combination total consideration including post combination expense	$ 541.8
Purchase price consideration	510.4
Business combination, consideration transferred, equity interests issued and issuable	252.0
Payment to acquire business	13.7
Business combination, recognized identifiable assets acquired and liabilities assumed, liabilities	238.4
Business combination, post combination expense	$ 31.4
Wave Optics | Class A Common Stock
Business Acquisition [Line Items]
Business combination consideration in shares issued or issuable	4.7
Fit Analytics
Business Acquisition [Line Items]
Purchase price consideration		$ 124.4
Other Acquisitions
Business Acquisition [Line Items]
Purchase price consideration			$ 123.8
Payment to acquire business			54.4
Goodwill deductible for tax purposes			1.0
Other Acquisitions | Other Liabilities
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, liabilities			12.8
Other Acquisitions | Class A Common Stock
Business Acquisition [Line Items]
Business combination, consideration transferred, equity interests issued and issuable			$ 56.6

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Number of shares of equity interests issued or issuable to acquire entity.

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