Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 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 March 31,
	2021		2020
Equity awards	(in thousands)
Cost of revenue	$	384	$	56
Research and development		2,456		942
Selling, general and administrative		3,335		1,757
	$	6,175	$	2,755
Liability-based awards - equity settled
Cost of revenue	$	17	$	—
Research and development		204		—
Selling, general and administrative		264		—
	$	485	$	—
Total stock-based compensation - equity settled	$	6,660	$	2,755
Liability-based awards - cash settled
Cost of revenue	$	102	$	—
Research and development		106		—
Selling, general and administrative		108		—
Total stock-based compensation - cash settled	$	316	$	—
Total stock-based compensation expense	$	6,976	$	2,755

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 months ended March 31, 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