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Business Combinations - Narrative (Details) - USD ($) $ in Millions		1 Months Ended				3 Months Ended	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 07, 2021	Apr. 30, 2022	Sep. 30, 2021	Jul. 31, 2021	Jun. 30, 2021	Dec. 31, 2021	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021	Dec. 31, 2020
2022 Business Acquisitions
Business Acquisition [Line Items]
Cash consideration		$ 150.6					$ 150.6
Conversion of Note Receivable		10.0					10.0
Business combination, contingent consideration, equity awards		$ 3.7
Value of consideration transferred							$ 160.6
2022 Business Acquisitions | Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares)		448,740
Equity interests issued and issuable		$ 26.8
Insent
Business Acquisition [Line Items]
Cash consideration					$ 32.9
Value of consideration transferred					34.0
Deferred purchase consideration	$ 1.1				1.1
Incentive compensation					$ 2.0
Insent | Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares)					36,118
Equity interests issued and issuable					$ 2.4
Chorus.ai
Business Acquisition [Line Items]
Value of consideration transferred				$ 547.4
Incentive compensation				6.0
Cash refund from Chorus.ai acquisition						$ 33.9
Certain unvested options issued				$ 31.8
Chorus.ai | Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares)				572,921
Equity interests issued and issuable				$ 30.3
RingLead
Business Acquisition [Line Items]
Cash consideration			$ 114.9
Value of consideration transferred			116.0
Deferred purchase consideration			1.1
Incentive compensation			$ 3.7
RingLead | Restricted Stock Units
Business Acquisition [Line Items]
Number of shares issued (in shares)			42,854
Equity interests issued and issuable			$ 2.8
2021 Business Acquisitions
Business Acquisition [Line Items]
Value of consideration transferred								$ 697.4
Deferred purchase consideration								2.2
Cash refund from Chorus.ai acquisition								$ 0.0
Revenue from acquired companies									$ 13.2
Transaction costs incurred						$ 12.6			$ 12.6	$ 12.6

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