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Equity Incentive Plans (Tables)

6 Months Ended

Jun. 30, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Recorded Stock-based Compensation Expense in the Condensed Consolidated Statement of Operations

The Company recorded stock-based compensation expense in the condensed consolidated statement of operations for the periods presented as follows (in thousands):

			Three Months Ended June 30,												Six Months Ended June 30,
			2023						2022						2023						2022
Cost of revenue			$	1,835					$	1,453					$	3,296					$	2,467
Research and development			19,560						15,579						37,340						26,870
Selling, general and administrative			24,301						19,281						47,161						33,023
Total stock-based compensation expense			$	45,696					$	36,313					$	87,797					$	62,360

Schedule of RSU activity

Restricted stock unit activity for the six months ended June 30, 2023 is as follows:

			Restricted Stock Units						Weighted-Average Grant Date Fair Value (per share)
Outstanding as of December 31, 2022			5,836,192						$	52.21
Granted			1,948,808						50.68
Vested			(922,619)						61.97
Cancelled			(428,549)						57.69
Outstanding as of June 30, 2023			6,433,832						$	49.98

Schedule of the Company's Stock Option Activity

Stock option activity for the six months ended June 30, 2023 is as follows:

			Stock Options						Weighted-Average Exercise Price
Outstanding as of December 31, 2022			7,964,557						$	37.10
Granted			300,870						50.80
Exercised			(1,088,527)						5.02
Cancelled and forfeited			(169,273)						82.96
Outstanding as of June 30, 2023			7,007,627						$	41.56

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

The Company estimates the fair values of shares granted under the PSAs using a Monte Carlo simulation model with the following assumptions:

Expected volatility			71%
Risk-free interest rate			3.7%
Expected dividend			—%

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Tabular disclosure of share-based payment arrangement.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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