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Stock-based Compensation (Details) - USD ($) $ in Thousands			12 Months Ended
Stock-based Compensation (Details) - USD ($) $ in Thousands	Jun. 06, 2024	Oct. 22, 2019	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Stock-based compensation
Rollover options outstanding (in shares)			16,511,128	13,032,541	13,123,170	12,364,357
Stock-based compensation expense			$ 54,437	$ 8,848	$ 8,003
Expected compensation expense, weighted average period (in years)			3 years 8 months 12 days
General and administrative
Stock-based compensation
Stock-based compensation expense			$ 31,288	5,034	4,567
Research and development
Stock-based compensation
Stock-based compensation expense			$ 8,306	$ 1,303	$ 1,182
Restricted Stock Units (RSUs)
Stock-based compensation
Expected compensation expense, weighted average period (in years)			4 years 4 months 24 days
Stock Incentive Plan 2019
Stock-based compensation
Maximum shares issuable		9,900,000
Contractual term (in years)		10 years
Vesting period of options with a service condition (in years)		5 years
Vesting percentage of options with a service condition (in percent)		20.00%
Rollover options outstanding (in shares)		3,400,000
Equity Incentive Plan 2024
Stock-based compensation
Vesting period of options with a service condition (in years)	5 years
Vesting percentage of options with a service condition (in percent)	20.00%
Common stock, capital shares reserved for future issuance	10,000,000
Percentage of outstanding stock maximum	5.00%
Equity Incentive Plan 2024 \| Restricted Stock Units (RSUs)
Stock-based compensation
Common stock, capital shares reserved for future issuance			4,600,000
Equity Incentive Plan 2024 \| Maximum \| Restricted Stock Units (RSUs)
Stock-based compensation
Vesting period of options with a service condition (in years)	5 years
Vesting percentage of options with a service condition (in percent)	25.00%
Equity Incentive Plan 2024 \| Minimum \| Restricted Stock Units (RSUs)
Stock-based compensation
Vesting period of options with a service condition (in years)	4 years
Vesting percentage of options with a service condition (in percent)	20.00%
Employee Stock Purchase Plan 2024
Stock-based compensation
Maximum shares issuable			0
Common stock, capital shares reserved for future issuance	3,250,000
Percentage of outstanding stock maximum	1.00%
Employee Stock Purchase Plan 2024 \| Maximum
Stock-based compensation
Shares issued in period	27,000,000