Stock-Based Compensation - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2024	Mar. 31, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted (in shares)		0
Stock-based compensation expense		$ 97,768,000	$ 1,997,000
Unrecognized stock based compensation	$ 16,600,000	$ 16,600,000
Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized stock based compensation expense, recognition period		1 year 4 months 24 days
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		$ 100,000,000
Unrecognized share-based compensation cost related to unvested restricted stock units	$ 224,700,000	224,700,000
Restricted Stock Units In Connection With IPO
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense		$ 88,900,000
2018 Equity Incentive Plan | Stock Option
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expiration period		10 years
Vesting period		4 years
2018 Equity Incentive Plan | Restricted Stock Units (RSUs)
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period		4 years
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	12,362,662
Annual automatic increases in the number of shares	5.00%	5.00%
Granted (in shares)		0
2024 Employee Stock Purchase Plan | Employee Stock
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Capital shares reserved for future issuance (in shares)	3,090,666	3,090,666
Number of additional shares allowable under the plan (in shares)	3,090,666	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%
Purchase period	6 months
Maximum contribution amount	$ 25,000
Maximum number of shares per employee (in shares)	3,000
ESPP shares purchased during the period (in shares)		0