Stockholders' Equity (Tables)

9 Months Ended

Sep. 30, 2020

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 September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Equity awards	(in thousands)
Cost of revenue	$	34	$	—	$	119	$	—
Research and development		1,100		—		3,016		—
Selling, general and administrative		2,785		—		6,614		—
	$	3,919	$	—	$	9,749	$	—
Liability-based awards
Cost of revenue	$	98	$	—	$	138	$	—
Research and development		285		—		383		—
Selling, general and administrative		338		—		392		—
	$	721	$	—	$	913	$	—
Total stock-based compensation expense	$	4,640	$	—	$	10,662	$	—

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 nine months ended September 30, 2020:

	RSU			Grant Date		CRSU			Grant Date
	Number of			Fair Value		Number of			Fair Value
	Shares			per share		Shares			per share
Balance at December 31, 2019		2,989,322		$	13.0		—		$	-
Granted		206,026			20.9		—			—
Vested		(149,141	)		13.2		—			—
Forfeited		(130,939	)		13.5		—			—
Balance at March 31, 2020		2,915,268		$	13.5		—		$	-
Granted		130,640			33.8		4,780			22.2
Vested		(183,910	)		14.0		(3,290	)		20.9
Forfeited		(17,860	)		13.8		—			13.8
Balance at June 30, 2020		2,844,138		$	14.4		1,490		$	25.2
Granted		133,825			51.4		3,524			46.9
Vested		(224,179	)		16.8		(4,130	)		41.5
Forfeited		(19,980	)		15.0		—			—
Balance at September 30, 2020		2,733,804		$	16.0		884		$	26.9