Stockholder's equity (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		12 Months Ended		14 Months Ended
	Oct. 31, 2025	Nov. 30, 2021	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2024	Nov. 30, 2025	Jun. 30, 2025	May 31, 2025	Oct. 31, 2024
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (in dollars per share)			$ 0.0001	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)			300,000,000	150,000,000	150,000,000		300,000,000
At-the-market offerings
Subsidiary, Sale of Stock [Line Items]
Issuance and sale of common stock			$ 9,400
Issuance of common stock, net (in shares)			3,769,483
Price per share (in dollars per share)			$ 2.55
At-the-market offerings | Equity Distribution Agreement with Cowen and Company, LLC
Subsidiary, Sale of Stock [Line Items]
Issuance of common stock, net (in shares)				4,132,122	15,318,264
Proceeds from issuance of common stock				$ 24,400	$ 82,300
Price per share (in dollars per share)			$ 5.54
Underwritten Offering
Subsidiary, Sale of Stock [Line Items]
Issuance and sale of common stock			$ 116,869
Proceeds from issuance of common stock			$ 116,870	$ 0
Number of shares (in shares)	21,895,000
Common stock, par value (in dollars per share)	$ 0.0001
Consideration received on transaction	$ 116,900
Total consideration received on transaction, potential expected	$ 341,700
Underwritten Offering | Pre-Funded Warrants
Subsidiary, Sale of Stock [Line Items]
Number of securities called by warrants or rights (in shares)	28,713,500
Number of securities called by each warrant or right (in shares)	1
Exercise price per share (in USD per share)	$ 0.0001
Underwritten Offering | Class A Warrants
Subsidiary, Sale of Stock [Line Items]
Number of securities called by warrants or rights (in shares)	50,608,500
Underwritten Offering | Class B Warrants
Subsidiary, Sale of Stock [Line Items]
Number of securities called by warrants or rights (in shares)	50,608,500
Underwritten Offering | Class A and Class B Warrants
Subsidiary, Sale of Stock [Line Items]
Number of securities called by each warrant or right (in shares)	1
Exercise price per share (in USD per share)	$ 2.47
Underwritten Offering | Pre-Funded Warrants And Class A and Class B Warrants
Subsidiary, Sale of Stock [Line Items]
Exercise price per share (in USD per share)	$ 2.4699
Maximum | At-the-market offerings
Subsidiary, Sale of Stock [Line Items]
Value authorized for sale of stock						$ 400,000			$ 200,000
Common stock, shares authorized (in shares)								150,000,000
Maximum | At-the-market offerings | Common Stock
Subsidiary, Sale of Stock [Line Items]
Value authorized for sale of stock						$ 125,000
Maximum | At-the-market offerings | Equity Distribution Agreement with Cowen and Company, LLC
Subsidiary, Sale of Stock [Line Items]
Issuance and sale of common stock		$ 200,000