Subsequent Events - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	May 10, 2024	May 01, 2024	Mar. 31, 2024
Subsequent Event
Subsequent Event [Line Items]
Expected percentage of reduction of workforce		67.00%
Expected non cash expense relating to vesting of equity awards		$ 1.6
Subsequent Event | Minimum
Subsequent Event [Line Items]
Expected severance and termination benefits		3.1
Subsequent Event | Maximum
Subsequent Event [Line Items]
Expected severance and termination benefits		$ 3.2
May 2024 Convertible Notes
Subsequent Event [Line Items]
Payment terms			The May 2024 Notes bear interest at 15% per annum, which may be increased to 17% upon the occurrence of certain events of default as described therein, and the principal and all accrued but unpaid interest is due on the date that is the earlier of (a) ten (10) business days following the Company’s receipt of a U.K. research and development tax credit from HM Revenue and Customs, and (b) November 10, 2024.
Conversion description			Provided, however, at any time or times from the date of the note and until the tenth business day prior to closing of the Merger, the note holders are entitled to convert any portion of the outstanding and unpaid amount, including principal and accrued interest, into Company ADSs at a fixed conversion price equal to $1.59, subject to certain restrictions.
May 2024 Convertible Notes | Subsequent Event
Subsequent Event [Line Items]
Gross proceeds from convertible promissory notes	$ 1.0
Interest rate per annum	15.00%
Default, interest rate percentage	17.00%
Conversion price	$ 1.59