Stock-based compensation - Schedule of Return Target and Service Based Options Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares
Target-Based Stock Options
Options
Outstanding, beginning of period (in shares) | shares	2,265,275
Exercised (in shares) | shares	(48,284)
Outstanding, end of period (in shares) | shares	2,216,991	2,265,275
Options exercisable (in shares) | shares	2,216,991
Vested or expected to vest (in shares) | shares	2,216,991
Weighted-Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 6.66
Exercised (in dollars per share) | $ / shares	6.05
Outstanding, end of period (in dollars per share) | $ / shares	6.67	$ 6.66
Options exercisable (in dollars per share) | $ / shares	6.67
Vested or expected to vest (in dollars per share) | $ / shares	$ 6.67
Weighted-Average Remaining Contractual Term (Years)
Remaining term, options outstanding (in years)	3 years 2 months 12 days	3 years 8 months 12 days
Remaining term, options exercisable (in years)	3 years 2 months 12 days
Remaining term, options vested or expected to vest (in years)	3 years 2 months 12 days
Aggregate Intrinsic Value (in thousands)
Outstanding | $	$ 6,289	$ 16,740
Exercised | $	211
Options exercisable | $	6,289
Vested or expected to vest | $	$ 6,289
Service-Based Stock Option
Options
Outstanding, beginning of period (in shares) | shares	757,343
Exercised (in shares) | shares	(13,716)
Outstanding, end of period (in shares) | shares	743,627	757,343
Options exercisable (in shares) | shares	743,627
Vested or expected to vest (in shares) | shares	743,627
Weighted-Average Exercise Price
Outstanding, beginning of period (in dollars per share) | $ / shares	$ 5.52
Exercised (in dollars per share) | $ / shares	5.49
Outstanding, end of period (in dollars per share) | $ / shares	5.52	$ 5.52
Options exercisable (in dollars per share) | $ / shares	5.52
Vested or expected to vest (in dollars per share) | $ / shares	$ 5.52
Weighted-Average Remaining Contractual Term (Years)
Remaining term, options outstanding (in years)	2 years 6 months	3 years
Remaining term, options exercisable (in years)	2 years 6 months
Remaining term, options vested or expected to vest (in years)	2 years 6 months
Aggregate Intrinsic Value (in thousands)
Outstanding | $	$ 2,970	$ 6,464
Exercised | $	68
Options exercisable | $	2,970
Vested or expected to vest | $	$ 2,970