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Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	3 Months Ended
	Jul. 31, 2021	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation epxense		$ 28,880	$ 20,380
Weighted average grant-date fair value of stock options granted		$ 72.91	$ 52.41
Aggregate intrinsic value of stock options exercised		$ 23,700	$ 11,800
2021 Stock Option and Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock awards granted, expiration period	10 years
2021 Stock Option and Incentive Plan [Member] \| Common Class A [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for future issuance		11,015,324
2021 Employee Stock Purchase Plan [Member] \| Common Class A [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares available for future issuance		2,795,174
PSUs [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation cost related to common stock options		$ 33,600
Number of Shares, outstanding		368,757
Excluding PSUs [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation cost related to common stock options		$ 226,200
Share based payment weighted average period		2 years 4 months 24 days
RSUs
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Total fair value of RSUs vested		$ 23,300	$ 14,600
Number of Shares, outstanding		1,456,838		1,091,116
Number of Shares, Vested		(309,133)
Maximum [Member] \| 2021 Stock Option and Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock awards granted, vesting period	4 years
Minimum [Member] \| 2021 Stock Option and Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock awards granted, vesting period	3 years