STOCK-BASED COMPENSATION (Tables)

6 Months Ended

Jun. 30, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Expense Related to Awards Issued

Stock-based compensation expense related to awards issued under the Company's incentive compensation plans for the three and six months ended June 30, 2022 and 2021, was as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Cost of product revenues	$	885	$	343	$	1,402	$	1,197
Sales and marketing	2,464		11		5,277		26
Research and development	6,423		194		11,568		590
General and administrative	7,020		2,021		14,579		3,778
Total stock-based compensation expense	$	16,792	$	2,569	$	32,826	$	5,591

Schedule of Stock Option Activity and Related Information

A summary of stock option activity and related information for the six months ended June 30, 2022 was as follows:

	Options	Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (Years)
Outstanding at January 1, 2022	9,163,160	$	5.13	6.40
Granted	—	—
Exercised	(515,705)	0.55
Forfeited	(133,951)	13.24
Expired	(49,766)	13.99
Outstanding at June 30, 2022	8,463,738	$	5.23	6.29
Exercisable at June 30, 2022	6,203,101	$	3.20	5.53
Vested and expected to vest at June 30, 2022	8,463,738	$	5.23	6.29

Share-based Payment Arrangement, Restricted Stock Unit, Activity

A summary of RSU activity and related information for the six months ended June 30, 2022 was as follows:

	Underlying Shares	Weighted-average Grant Date Fair Value		Aggregate Fair Value
Outstanding, January 1, 2022	11,264,235	$	14.62	$	164,683
Granted	7,159,719	7.50		53,698
Vested	(1,507,394)	14.80		(22,309)
Forfeited	(88,848)	8.98		(798)
Outstanding, June 30, 2022	16,827,712	$	11.60	$	195,274

Market-based performance-vesting RSU activity for the six months ended June 30, 2022 was as follows:

	Underlying Shares		Weighted-average Grant Date Fair Value		Aggregate Fair Value
Outstanding, January 1, 2022	$	3,335,300	$	12.82	$	42,759
Granted	—		—		—
Vested	—		—		—
Forfeited	—		—		—
Outstanding, June 30, 2022	$	3,335,300	$	12.82	42,759

Operations-based performance-vesting RSU activity for the six months ended June 30, 2022 was as follows:

	Underlying Shares	Weighted-average Grant Date Fair Value		Aggregate Fair Value
Outstanding, January 1, 2021	1,597,272	$	16.00	$	25,556
Granted	—	—		—
Vested	(532,424)	16.00		(8,519)
Forfeited	—	—		—
Outstanding, June 30, 2022	1,064,848	$	16.00	$	17,037