Organization and Basis of Presentation (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2021 USD ($) wholly-ownedSubsidiary	Sep. 30, 2020 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of wholly-owned subsidiaries | wholly-ownedSubsidiary			2
Remeasurement loss | $	$ 0.9	$ 1.1	$ 2.8	$ 3.2