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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2021

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Schedule of Stock-based Compensation Expense Amounts Included in Condensed Consolidated Statement of Operations

The following table presents the detail of stock-based compensation expense amounts included in the condensed consolidated statement of operations for each of the periods presented:

		Three Months Ended June 30,								Six Months Ended June 30,
		2021				2020				2021				2020
Equity awards		(in thousands)
Cost of revenue		$	428			$	30			$	812			$	86
Research and development			2,531				974				4,987				1,916
Selling, general and administrative			3,675				2,072				7,010				3,829
		$	6,634			$	3,076			$	12,809			$	5,831
Liability-based awards - equity settled
Cost of revenue		$	33			$	—			$	50			$	—
Research and development			328				—				532				—
Selling, general and administrative			494				—				758				—
		$	855			$	—			$	1,340			$	—
Total stock-based compensation - equity settled		$	7,489			$	3,076			$	14,149			$	5,831
Liability-based awards - cash settled
Cost of revenue		$	—			$	40			$	102			$	40
Research and development			37				98				143				98
Selling, general and administrative			—				54				108				54
Total stock-based compensation - cash settled		$	37			$	192			$	353			$	192
Total stock-based compensation expense		$	7,526			$	3,268			$	14,502			$	6,023

RSU and CRSU

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Schedule of Restricted Stock Unit Award ("RSU") and Cash Restricted Stock Unit Award (''CRSU'') Activity (Details)

The following table summarizes the restricted stock unit award (“RSU”) and cash restricted stock unit award (“CRSU”), activity for the three and six months ended June 30, 2021:

		RSU				Grant Date				CRSU				Grant Date
		Number of				Fair Value				Number of				Fair Value
		Shares				per share				Shares				per share
Unvested at December 31, 2020			2,735,706			$	22.4				624			$	35.1
Granted			190,838				107.1				3,025				111.9
Vested			(189,460	)			22.8				(3,405	)			101.7
Forfeited			(13,840	)			13.0				—				—
Unvested at March 31, 2021			2,723,244			$	28.2				244			$	58.4
Granted			103,063				100.5				—				—
Vested			(221,049	)			23.1				—				—
Forfeited			(49,880	)			29.6				(244	)			58.4
Unvested at June 30, 2021			2,555,378			$	31.5				—			$	-

X

- Definition

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.

+ References

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- Definition

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.

+ References

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