Related party transactions (Details)						12 Months Ended
	Jun. 06, 2023 shares	Jun. 07, 2022 shares	Mar. 08, 2021 shares	Sep. 21, 2020 shares	Jun. 22, 2020 USD ($) shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2018 USD ($) shares	Jun. 30, 2020 USD ($) shares	Jul. 31, 2019 USD ($)
Related Party Transaction [Line Items]
Stock issued during period value | $						$ 133,657,000	$ 186,987,000
Related Party | Consulting Agreement
Related Party Transaction [Line Items]
Shares purchased for awards (in shares)					159,769
Related Party | Bridge Notes
Related Party Transaction [Line Items]
Convertible preferred stock, shares issued upon conversion (in shares)										3,402,528
Convertible preferred stock conversion ratio					2.7162
Series A Convertible Preferred Stock | Related Party
Related Party Transaction [Line Items]
Convertible preferred stock, shares issued upon conversion (in shares)									366,690
Convertible preferred stock conversion ratio									2.7162
Class A Common Stock
Related Party Transaction [Line Items]
Common stock, outstanding (in shares)						316,589,859	187,599,812
Class A Common Stock | Related Party
Related Party Transaction [Line Items]
Restricted stocks issued (in shares)	25,658	24,271
Roderick K Randall | Related Party
Related Party Transaction [Line Items]
Debt issued | $										$ 220,000	$ 100,000
Mr. Randall and Series Fisker | Related Party
Related Party Transaction [Line Items]
Shares purchased for awards (in shares)					67,905
Mr. Randall and Series Fisker | Series A Convertible Preferred Stock | Related Party
Related Party Transaction [Line Items]
Stock issued during period (in shares)					1,236,610
Stock issued during period value | $					$ 924,984
Mr. Randall and Series Fisker | Class A Common Stock | Related Party
Related Party Transaction [Line Items]
Shares purchased for awards (in shares)					13,581
Nadine I Watt Jameson Family Trust | Series A Convertible Preferred Stock | Related Party
Related Party Transaction [Line Items]
Stock issued during period (in shares)									135,000
Stock issued during period value | $									$ 100,980
Mrs. Watt | Related Party
Related Party Transaction [Line Items]
Restricted stocks issued (in shares)	36,653	24,271
Mrs. Watt | Class A Common Stock | Related Party
Related Party Transaction [Line Items]
Shares purchased for awards (in shares)					13,581
Mrs. Watt | Class A Common Stock | Related Party | Second Quarter
Related Party Transaction [Line Items]
Award vesting period (in years)						12 months
Mr. Jameson | Class A Common Stock | Related Party
Related Party Transaction [Line Items]
Shares purchased for awards (in shares)				14,939
Mr. Zuklie | Related Party | Restricted Stock
Related Party Transaction [Line Items]
Restricted stocks issued (in shares)	40,805	24,271
Awards granted (in shares)			2,711
Mr. Zuklie | Related Party | Restricted Stock | First Quarter
Related Party Transaction [Line Items]
Award vesting period (in years)						12 months
Mr. Zuklie | Class A Common Stock | Related Party
Related Party Transaction [Line Items]
Common stock, outstanding (in shares)			54,461
Orrick | Related Party | Expenses For Legal Services
Related Party Transaction [Line Items]
Related party transaction, amount | $						$ 1,500,000	$ 9,100,000	$ 1,800,000