CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($) shares in Millions, $ in Millions		Total	IPO	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Class A Shares	Class B Shares	Class A and Class B Common Stock	[1]	Class A and Class B Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	[1]	Class A and Class B Common Stock Class A Shares		Class A and Class B Common Stock Class A Shares Cumulative Effect, Period of Adoption, Adjusted Balance	Class A and Class B Common Stock Class B Shares		Class A and Class B Common Stock Class B Shares IPO	Class A and Class B Common Stock Class B Shares Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock		Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance		Additional Paid-In Capital	Additional Paid-In Capital IPO	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Loss	Accumulated Loss Cumulative Effect, Period of Adoption, Adjustment	Accumulated Loss Cumulative Effect, Period of Adoption, Adjusted Balance
Increase (Decrease) in Temporary Equity [Roll Forward]
Change in accounting principle, type [Extensible Enumeration]		Accounting Standards Update 2016-13 [Member]
Beginning balance (in shares) at Dec. 31, 2019		158.9
Beginning balance at Dec. 31, 2019		$ 560.4
Increase (Decrease) in Temporary Equity [Roll Forward]
Tender offer and subsequent conversion (in shares)		2.9
Conversion of redeemable convertible preferred stock to common stock from IPO (in shares)			(161.8)
Conversion of redeemable convertible preferred stock to common stock from IPO			$ (560.4)
Ending balance (in shares) at Dec. 31, 2020		0.0			0.0
Ending balance at Dec. 31, 2020		$ 0.0			$ 0.0
Beginning balance (in shares) at Dec. 31, 2019	[1]											0.0			2.5
Treasury stock, beginning balance (in shares) at Dec. 31, 2019	[1]																		0.3
Beginning balance at Dec. 31, 2019		(374.0)						$ 0.0											$ (0.1)	[1]			$ 10.5			$ 0.6		$ (385.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(363.0)																										(363.0)
Other comprehensive income (loss)		5.0																								5.0
Tender offer and subsequent conversion (in shares)	[1]														(0.2)
Tender offer and subsequent conversion		25.1																					25.1
Conversion of redeemable convertible preferred stock to common stock from IPO (in shares)	[1]											0.9			(0.9)		9.0
Conversion of redeemable convertible preferred stock to common stock from IPO		0.0	$ 560.4																					$ 560.4
Common stock—issuance of shares from IPO and concurrent private placement, net of issuance costs (in shares)	[1]											2.4
Common stock—issuance of shares from IPO and concurrent private placement, net of issuance costs		1,098.1																					1,098.1
Warrants exercise (in shares)	[1]														0.2
Warrants exercise		75.2																					75.2
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes (in shares)	[1]														0.1
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes		1.9																					1.9
Reclassification of early-exercised stock option to liabilities		0.2																					0.2
Common stock—share-based compensation expense		3.7																					3.7
Settlement of related party loan		(0.2)																	$ (0.7)	[1]			0.5
Treasury stock, ending balance (in shares) at Dec. 31, 2020	[1]																		0.3		0.3
Ending balance (in shares) at Dec. 31, 2020	[1]											3.3		3.3	10.7			10.7
Ending balance at Dec. 31, 2020		$ 1,032.4		$ (1.0)	$ 1,031.4			0.0		$ 0.0									$ (0.8)	[1]	$ (0.8)	[1]	1,775.6		$ 1,775.6	5.6	$ 5.6	(748.0)	$ (1.0)	$ (749.0)
Increase (Decrease) in Temporary Equity [Roll Forward]
Preferred stock issued (in shares)		14.1
Preferred stock issued		$ 126.5
Preferred stock and related warrants issuance costs		$ (14.5)
Ending balance (in shares) at Dec. 31, 2021		14.1
Ending balance at Dec. 31, 2021		$ 112.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(521.1)																										(521.1)
Other comprehensive income (loss)		(5.2)																								(5.2)
Conversion of redeemable convertible preferred stock to common stock from IPO (in shares)	[1]											4.5			(4.5)
Conversion of redeemable convertible preferred stock to common stock from IPO		$ 0.0
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes (in shares)		0.2										0.1	[1]
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes		$ 4.4																					4.4
Reclassification of early-exercised stock option to liabilities (in shares)	[1]														(0.1)
Reclassification of early-exercised stock option to liabilities		(0.2)																					(0.2)
Common stock—share-based compensation expense		19.3																					19.3
Warrant compensation expense		8.8																					8.8
Retirement of treasury shares (in shares)	[1]																		(0.3)
Retirement of treasury shares		0.0																	$ 0.8	[1]			(0.8)
Preferred stock and related warrants issuance costs		(1.0)																					(1.0)
Treasury stock, ending balance (in shares) at Dec. 31, 2021	[1]																		0.0
Ending balance (in shares) at Dec. 31, 2021						7.9	6.1					7.9	[1]		6.1	[1]
Ending balance at Dec. 31, 2021		536.4						0.0											$ 0.0	[1]			1,806.1			0.4		(1,270.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(77.5)
Ending balance at Mar. 31, 2022		$ 467.6																										(1,347.6)
Beginning balance (in shares) at Dec. 31, 2021		14.1
Beginning balance at Dec. 31, 2021		$ 112.0
Beginning balance (in shares) at Dec. 31, 2021						7.9	6.1					7.9	[1]		6.1	[1]
Treasury stock, beginning balance (in shares) at Dec. 31, 2021	[1]																		0.0
Beginning balance at Dec. 31, 2021		536.4						0.0											$ 0.0	[1]			1,806.1			0.4		(1,270.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(173.0)
Ending balance at Jun. 30, 2022		$ 381.3																										(1,443.1)
Beginning balance (in shares) at Dec. 31, 2021		14.1
Beginning balance at Dec. 31, 2021		$ 112.0
Beginning balance (in shares) at Dec. 31, 2021						7.9	6.1					7.9	[1]		6.1	[1]
Treasury stock, beginning balance (in shares) at Dec. 31, 2021	[1]																		0.0
Beginning balance at Dec. 31, 2021		536.4						0.0											$ 0.0	[1]			1,806.1			0.4		(1,270.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(239.4)
Ending balance at Sep. 30, 2022		$ 321.8																										(1,509.5)
Beginning balance (in shares) at Dec. 31, 2021		14.1
Beginning balance at Dec. 31, 2021		$ 112.0
Ending balance (in shares) at Dec. 31, 2022		14.1
Ending balance at Dec. 31, 2022		$ 112.0
Beginning balance (in shares) at Dec. 31, 2021						7.9	6.1					7.9	[1]		6.1	[1]
Treasury stock, beginning balance (in shares) at Dec. 31, 2021	[1]																		0.0
Beginning balance at Dec. 31, 2021		536.4						0.0											$ 0.0	[1]			1,806.1			0.4		(1,270.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(297.7)																										(297.7)
Other comprehensive income (loss)		(6.2)																								(6.2)
Conversion of redeemable convertible preferred stock to common stock from IPO (in shares)	[1]											1.1			(1.1)
Conversion of redeemable convertible preferred stock to common stock from IPO		0.0
Warrants exercise		$ 0.6																					0.6
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes (in shares)		0.1										0.2	[1]
Common stock—option exercises and restricted stock units vesting, net of shares withheld for employee taxes		$ 0.4																					0.4
Reclassification of early-exercised stock option to liabilities		0.2																					0.2
Common stock—share-based compensation expense		30.5																					30.5
Warrant compensation expense		14.5																					14.5
Preferred stock and related warrants issuance costs		(1.6)																					(1.6)
Treasury stock, ending balance (in shares) at Dec. 31, 2022	[1]																		0.0
Ending balance (in shares) at Dec. 31, 2022						9.2	5.0					9.2	[1]		5.0	[1]
Ending balance at Dec. 31, 2022		277.1						0.0											$ 0.0	[1]			1,850.7			(5.8)		(1,567.8)
Beginning balance at Mar. 31, 2022		467.6																										(1,347.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(95.5)
Ending balance at Jun. 30, 2022		381.3																										(1,443.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(66.4)
Ending balance at Sep. 30, 2022		$ 321.8																										(1,509.5)
Ending balance (in shares) at Dec. 31, 2022		14.1
Ending balance at Dec. 31, 2022		$ 112.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss		(58.3)
Treasury stock, ending balance (in shares) at Dec. 31, 2022	[1]																		0.0
Ending balance (in shares) at Dec. 31, 2022						9.2	5.0					9.2	[1]		5.0	[1]
Ending balance at Dec. 31, 2022		$ 277.1						$ 0.0											$ 0.0	[1]			$ 1,850.7			$ (5.8)		$ (1,567.8)

[1] Reflects the 1-for-18 reverse stock split that became effective August 12, 2022. Refer to Note 2, “Basis of Presentation and Summary of Significant Accounting Policies.”