Warrant liabilities - Additional Information (Details) - $ / shares	Dec. 31, 2023	Dec. 31, 2022
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding	20,500,000	20,500,000
Public Warrants [Member]
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding	10,000,000	10,000,000
Estimated Fair Value Of Warrants Determined Based On Publicy Observable Units From Trading In An Active Market Price Per Warrant	$ 0.03	$ 0.03
Private Placement Warrants [Member]
Class of Warrant or Right [Line Items]
Class of warrant or right outstanding	10,500,000	10,500,000