Business Combination Agreement with Helix and Recapitalization - Narrative (Details)			1 Months Ended		12 Months Ended
	Apr. 05, 2022 USD ($) $ / shares shares	Oct. 04, 2021 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	May 31, 2023 USD ($) shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Apr. 01, 2022 SFr / shares shares	Apr. 28, 2021 $ / shares
Schedule Of Reverse Recapitalization [Line Items]
Reverse recapitalization, net | $	$ 134,689,000
Repayments of loan liability | $	$ 15,000,000.0				$ 0	$ 15,000,000
Sale of stock (in shares)			525,924	544,894
Sale of stock, consideration received on transaction | $			$ 31,700,000	$ 15,200,000
PIPE Investors
Schedule Of Reverse Recapitalization [Line Items]
Sale of stock (in shares)		11,600,000
Issuance price per share (USD per share) | $ / shares		$ 10.00
Sale of stock, consideration received on transaction | $		$ 116,000,000.0
IPO Private Placement Shares
Schedule Of Reverse Recapitalization [Line Items]
Sale of stock (in shares)		100,000
Aggregate fees | $		$ 1,000,000.0
Series A Preferred Shares
Schedule Of Reverse Recapitalization [Line Items]
Preferred stock, par value (CHF per share) | SFr / shares							SFr 0.10
Class V Voting Stock
Schedule Of Reverse Recapitalization [Line Items]
Common shares, shares authorized (in shares)							4,006,736
Common shares, par value (USD per share) | SFr / shares							SFr 0.01
Common stock, votes per share multiplier							10
Class B Ordinary Shares
Schedule Of Reverse Recapitalization [Line Items]
Common shares, par value (USD per share) | $ / shares	$ 0.0001
Conversion of stock, shares converted	2,875,000
Common stock, conversion ratio (in shares)	1
Common Class A
Schedule Of Reverse Recapitalization [Line Items]
Common shares, shares authorized (in shares)			500,000,000		500,000,000	500,000,000
Common shares, par value (USD per share) | $ / shares			$ 0.0001		$ 0.0001	$ 0.0001		$ 0.0001
Issuance of Class A ordinary shares upon Business Combination (in shares)	18,501,284
Preferred Shares purchased by a director following his appointment as chairman of the board of directors (in shares)	11,700,000
Sale of stock (in shares)		11,700,000			10,270,818
Common Class C
Schedule Of Reverse Recapitalization [Line Items]
Common shares, shares authorized (in shares)			100,000,000		100,000,000	100,000,000
Common shares, par value (USD per share) | $ / shares			$ 0.0001		$ 0.0001	$ 0.0001
Issuance of Class A ordinary shares upon Business Combination (in shares)	15,775,472
Issuance of Helix Class C ordinary shares to ML parties (other than the BVF shareholders) (in shares)	15,775,472