Stock Incentive Plans (Tables)

9 Months Ended

Sep. 30, 2025

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Schedule of Restricted Stock Unit Activity ("RSU") and Restricted Stock Awards ("RSA")

The table below summarizes the restricted stock unit ("RSU") and restricted stock award ("RSA") activity for the nine months ended September 30, 2025:

				Weighted-
				Average
	Shares			Fair Value
Unvested —December 31, 2024		31,042,552		$	10.92
Granted		16,064,203			10.17
Vested		(17,476,705	)		11.17
Forfeited		(2,477,192	)		10.52
Unvested —September 30, 2025		27,152,858			10.34

Summary of Share-based Compensation Arrangements by Share-based Payment Award

The table below summarizes the stock option activity for the nine months ended September 30, 2025:

						Weighted-
						Average
				Weighted-		Remaining		Aggregate
				Average		Contractual		Intrinsic
				Exercise		Life		Value
	Shares			Price		(in years)		(in thousands)
Options outstanding—December 31, 2024		23,349,505		$	3.11		3.2	$	201,305
Exercised		(1,238,883	)		2.93
Forfeited and canceled		(34,737	)		8.58
Options outstanding—September 30, 2025		22,075,885		$	3.11		2.3	$	132,455
Options exercisable—September 30, 2025		21,850,095		$	3.05		2.3	$	132,335
Options vested and expected to vest—September 30, 2025		22,074,471		$	3.11		2.3	$	132,454

Summary of Share-based Payment Arrangement, Expensed and Capitalized, Amount

Stock-Based Compensation—Stock-based compensation expense has been recorded in the accompanying condensed consolidated statements of operations and comprehensive (loss) income as follows for the three and nine months ended September 30, 2025 and 2024 (in thousands):

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2025		2024		2025		2024
Cost of revenues	$	2,124	$	2,297	$	8,919	$	7,051
Research and development		13,734		12,164		45,870		34,750
Sales and marketing		10,918		6,637		36,568		19,150
General and administrative		12,417		21,027		54,859		66,270
Total stock-based compensation expense	$	39,193	$	42,125	$	146,216	$	127,221

2021 Employee Stock Purchase Plan [Member]

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of the ESPP purchase rights sold during the nine months ended September 30, 2025 was estimated using the Black-Scholes option pricing model with the following assumptions:

Expected term (in years)	0.5
Expected volatility	22 - 23%
Expected dividend yield	0%
Risk-free interest rate	4.2 - 5.3%