Stockholders' Equity - eXponential Stock Performance Plan (Details) $ in Millions	3 Months Ended	9 Months Ended	56 Months Ended	64 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)	Sep. 30, 2023 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recorded share-based compensation expense	$ 0.0			$ 246.0
eXponential Stock Units | 2019 eXponential Stock Performance Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Recorded share-based compensation expense			$ 199.4
Unrecognized stock-based compensation expense	$ 0.5	$ 0.5	$ 0.5	$ 0.5
Weighted average period over which costs are recognized		2 months 12 days