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Fair Value Measurements - Changes in Private Placement Warrants Liabilities (Details) - USD ($) $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2022	Sep. 30, 2021
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance			$ 227.8				$ 227.8
Mark to market gain on financial instruments	$ (53.3)			$ (83.0)			(202.7)	$ (113.2)
Exercise of Private Placement Warrants						$ (3.6)
Ending balance	25.1						25.1
Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance			227.8				227.8
Ending balance	25.1						25.1
Level 3 | Recurring
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	78.4	$ 127.4	227.8	279.0	$ 258.0	312.8	227.8	312.8
Ending balance	25.1	78.4	127.4	196.0	279.0	258.0	$ 25.1	$ 196.0
Level 3 | Recurring | Private Warrant
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Mark to market gain on financial instruments	(53.3)	$ (49.0)	(100.4)	(83.0)	$ 21.0	(51.2)
Exercise of Private Placement Warrants	$ 0.0		$ 0.0	$ 0.0		$ (3.6)

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Stock Issued During Period, Value, Private Warrants Exercised

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Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

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Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price.

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