Stock-based Compensation - Valuation assumptions (Details) - $ / shares	3 Months Ended	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2025	Jun. 30, 2024
Stock-based Compensation
Per share fair value of common stock	$ 17.04	$ 17.04	$ 4.62
Expected volatility			73.79%
Expected volatility - Minimum	67.87%	67.87%
Expected volatility - Maximum	68.86%	68.86%
Expected term (in years)			5 years 11 months 8 days
Risk-free rate	4.00%	4.00%	3.90%
Minimum
Stock-based Compensation
Expected term (in years)	5 years 6 months	5 years 6 months
Maximum
Stock-based Compensation
Expected term (in years)	6 years 3 months	6 years 3 months