Common stock - Narratives (Details) $ / shares in Units, $ in Thousands	1 Months Ended				12 Months Ended		20 Months Ended
	Dec. 31, 2025 USD ($) $ / shares shares	Jan. 31, 2025 USD ($) $ / shares shares	Nov. 30, 2024 USD ($) shares	Feb. 29, 2024 USD ($) $ / shares shares	Dec. 31, 2025 USD ($) Vote $ / shares shares	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($) $ / shares shares	May 14, 2024 USD ($)
Common Stock [Line Items]
Common stock voting right | Vote					1
Proceeds from issuance of common stock					$ 45,897	$ 20,000
Open Market Sale
Common Stock [Line Items]
Shares issued | shares			2,030,431		4,625,156		6,655,587
Gross proceeds from issuance of common shares					$ 45,900		$ 65,900
Proceeds from issuance of common stock			$ 19,600		44,900		64,500
Offering price of shares								$ 200,000
Percentage of commission								3.00%
Value of shares available for future issuance	$ 134,100				$ 134,100		$ 134,100
IPO
Common Stock [Line Items]
Shares issued | shares				11,500,000
Share price | $ / shares				$ 20
Proceeds from issuance of common stock				$ 215,400
Public offering
Common Stock [Line Items]
Shares issued | shares	21,418,750	22,258,064
Share price | $ / shares	$ 21.5	$ 7.75			$ 21.5		$ 21.5
Proceeds from issuance of common stock	$ 432,400	$ 161,700