Related Party Transactions (Details) $ / shares in Units, $ in Thousands, £ in Millions	1 Months Ended			3 Months Ended		6 Months Ended
	May 31, 2022 USD ($)	Apr. 30, 2021 USD ($)	Apr. 30, 2021 GBP (£)	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) shares	Jun. 30, 2021 USD ($)	Feb. 01, 2022	Dec. 31, 2021 USD ($) shares	Nov. 10, 2021 $ / shares shares	Jul. 21, 2020
Related Party Transaction
Revenue, net				$ 1,615	$ 542	$ 2,183	$ 847
Proceeds from convertible debt						0	16,222
Proceeds from issuance of common shares, net of transaction costs						$ 3,284	0
Common stock, shares, outstanding (in shares) | shares				96,325,512		96,325,512			93,950,205
Chief Executive Officer
Related Party Transaction
Professional and capital raising fees					300		600
Board of Directors Chairman
Related Party Transaction
Professional and capital raising fees				$ 0	100	$ 100	200
Director
Related Party Transaction
Professional and capital raising fees					100		700
Affiliated Entity
Related Party Transaction
Non-cash settlement of accounts payable		$ 2,900
Affiliated Entity | General Manager
Related Party Transaction
Accounts payable				$ 300		$ 300			$ 1,500
Affiliated Entity | GM Credit Facilty
Related Party Transaction
Interest expense					100		400
Affiliated Entity | Convertible Loan Agreement
Related Party Transaction
Proceeds from convertible debt		4,800	£ 3.5
Repayments of convertible debt		$ 1,900
Wejo Limited | Chief Executive Officer
Related Party Transaction
Ownership interest, minority interest (as a percent)				5.00%		5.00%
Wejo Limited | Apollo
Related Party Transaction
Common stock, shares, outstanding (in shares) | shares				5,700,000		5,700,000
Wejo Limited | Affiliated Entity | General Motors
Related Party Transaction
Ownership interest, parent (percentage)											5.00%
Revenue, net				$ 1,400	$ 1,100	$ 2,400	$ 1,600
Virtuoso | Managing Member
Related Party Transaction
Ownership interest, minority interest (as a percent)								5.00%
Professional fees				$ 1,900		$ 1,900
Committed equity facility secured				1.85%		1.85%
Virtuoso | Apollo
Related Party Transaction
Ownership interest, minority interest (as a percent)										5.00%
Virtuoso | Apollo | Forward Purchase Transaction
Related Party Transaction
Number of shares received in transaction (shares) | shares										7,500,000
Sale of stock (in dollars per share) | $ / shares										$ 10
Apollo
Related Party Transaction
Proceeds from issuance of common shares, net of transaction costs	$ 2,400
Percentage of shares which compensation has been received (percent)	25.00%