NET LOSS PER SHARE (Tables)

3 Months Ended

12 Months Ended

Mar. 31, 2021

Dec. 31, 2020

NET LOSS PER SHARE

Schedule of Net Loss Per Share, Basic and Diluted

	Three Months Ended March 31,
(in thousands, except per share amounts)	2021		2020
Numerator for basic and diluted net loss per share:
Net loss attributable to Common Stockholders	$	(59,108)	$	(21,804)
Denominator for basic and diluted net loss per share:
Weighted-average shares		238,244		156,250
Net loss per share—Basic and Diluted	$	(0.25)	$	(0.14)

	Years Ended December 31,
	2020		2019
(in thousands, except per share amounts)		(as restated)
Numerator for basic and diluted net loss per share:
Net loss attributable to Common Stockholders	$	(34,015)	$	(103,596)
Denominator for basic and diluted net loss per share:
Weighted average shares		157,906		150,002
Net loss per share—Basic and Diluted	$	(0.22)	$	(0.69)

Schedule of antidilutive securities excluded from computation of earnings per share

	Three Months Ended March 31,
	2021		2020
Common Stock options outstanding		19,378		12,964
Unvested restricted stock units outstanding		918		—
Unvested restricted stock awards outstanding		224		3,142
Common Stock warrants outstanding		—		578
Total shares		20,520		16,684

	Years Ended December 31,
	2020		2019
Common Stock options outstanding		19,553		18,072
Unvested restricted stock units outstanding		683		—
Unvested restricted stock awards outstanding		279		5,587
Common Stock warrants outstanding		25,010		634
Unvested Trine Founder Shares, held in escrow		1,851		—
Total shares		47,376		24,293