Stock-Based Compensation - Narrative (Details) - USD ($)	1 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
2024 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares)	12,362,662	5,400,000
Annual automatic increases in the number of shares	5.00%
Options to purchase common stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total intrinsic value		$ 379,300,000	$ 25,800,000	$ 17,600,000
Weighted average granted fair value (in dollars per share)		$ 47.04	$ 15.48	$ 8.82
Unrecognized stock based compensation		$ 8,900,000
Unrecognized stock based compensation expense, recognition period		9 months 18 days
Options to purchase common stock | 2018 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expiration period		10 years
Vesting period		4 years
Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock based compensation expense, recognition period		1 year 9 months 18 days
Fair value of RSUs vested		$ 241,000,000.0
Unrecognized stock based compensation expenses		$ 304,400,000
Granted (in shares)		10,674,000
Granted (in dollars per share)		$ 39.76
Restricted Stock Units (RSUs) | 2018 Equity Incentive Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period		4 years
ESPP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares issued under employee stock purchase plan (in shares)		100,000
Sale of stock, price (in dollars per share)		$ 30.60
ESPP | 2024 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares)	3,090,666
Number of additional shares allowable under the plan (in shares)	3,090,666
Percent of outstanding shares	1.00%
Maximum employee subscription amount, percent of salary		15.00%
ESPP purchase price of common stock, percent of market price		85.00%
Maximum contribution amount		$ 25,000
Maximum number of shares per employee (in shares)		3,000
ESPP shares purchased during the period (in shares)		100,000
Performance Shares Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock based compensation expenses		$ 19,500,000
Granted (in shares)		200,000
Granted (in dollars per share)		$ 125.28