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Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Stock-based compensation
Vesting of early exercised options (in shares)	0		1,676
Unvested early exercises of stock options (less than)	$ 0.0
Future awards under the 2021 Employee Stock Purchase Plan
Stock-based compensation
Stock authorized for issuance (in shares)	1,453,439		1,128,095
Exercise of outstanding stock options
Stock-based compensation
Weighted-average grant-date fair value of stock options granted (in dollars per share)	$ 7.90	$ 9.62
Unrecognized compensation cost	$ 14.8
Unrecognized compensation cost, weighted-average period for recognition	2 years 4 months 24 days
Vesting of outstanding restricted stock units
Stock-based compensation
Unrecognized compensation cost	$ 28.4
Unrecognized compensation cost, weighted-average period for recognition	2 years 10 months 24 days
Performance Shares (PSUs)
Stock-based compensation
Unrecognized compensation cost	$ 6.5
Outstanding (in shares)	438,500		438,500
Vested (in shares)	0
Stock-based compensation expense	$ 0.0
2021 Stock Option and Incentive Plan
Stock-based compensation
Stock authorized for issuance (in shares)	8,361,873		7,230,834
2016 Stock Incentive Plan
Stock-based compensation
Stock authorized for issuance (in shares)	1,741,365		1,776,694
2025 Inducement Equity Plan
Stock-based compensation
Stock authorized for issuance (in shares)	270,000