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Stockholders' Equity and Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Schedule of Restricted Stock Awards and Units

Restricted stock award (RSA) and restricted stock unit (RSU) activity under our equity incentive plan was as follows (in thousands, except weighted-average grant date fair values):

									Number of Restricted Stock Awards						Weighted-Average Grant Date Fair Value
RSAs at December 31, 2020									653						$	21.30
			Awards granted						—						—
			Awards vested						—						—
RSAs at March 31, 2021									653						$	21.30

									Number of Restricted Stock Units						Weighted-Average Grant Date Fair Value
RSUs at December 31, 2020									2,800						$	20.54
			Awards granted						76						38.76
			Awards vested						(3)						18.63
			Awards forfeited						(7)						24.88
RSUs at March 31, 2021									2,866						$	21.01

Schedule of Stock Option Activity

The following table summarizes the Company’s stock option activity during the three months ended March 31, 2021 (in thousands, except weighted-average exercise prices):

			Number of Options						Weighted-Average Exercise Price						Weighted-Average Remaining Contractual Term (Years)						Aggregate Intrinsic Value
Outstanding, December 31, 2020			3,358						$1.53						5.3						$104,510
Options exercised			(452)						$1.27
Options canceled			(2)						$4.79
Outstanding, March 31, 2021			2,904						$1.56						5.1						$89,554
Options exercisable at March 31, 2021			2,408						$1.15						4.8						$75,265
Options vested as of March 31, 2021 and expected to vest after March 31, 2021			2,904						$1.56						5.1						$89,554

Schedule of Stock-based Compensation Expense

Total stock-based compensation expense was included in our consolidated statements of operations as follows (in thousands):

									Three Months Ended March 31,
															2021						2020
Cost of revenues															$	491					$	345
Research and development															2,918						1,782
Sales, general and administrative															4,645						1,636
															$	8,054					$	3,763

Schedule of Share-Based Payment Arrangement, Nonvested Award, Cost

As of March 31, 2021, total unrecognized stock-based compensation related to unvested stock awards was $58.3 million, which will be recognized over the next five years as follows (in thousands):

Remainder of 2021			$	20,570
2022			21,754
2023			12,899
2024			3,027
2025			35
			$	58,285

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

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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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