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Net Loss Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Loss Per Share

		Year Ended
		December 31,
		2020				2019				2018
Numerator
Net loss		$	(75,240	)		$	(152,600	)		$	(158,899	)
Preferred stock deemed dividend			-				(3,267	)			-
Net loss allocable to common stockholders, basic			(75,240	)			(155,867	)			(158,899	)
Removal of change in fair value of warrant liability			(4,124	)			-				-
Net loss allocable to common stockholders, diluted		$	(79,364	)		$	(155,867	)		$	(158,899	)
Denominator
Weighted average shares used to compute net loss allocable to common stockholders per share, basic			100,753				72,024				62,362
Effect of dilutive warrants			751				-				-
Weighted average shares used to compute net loss allocable to common stockholders per share, diluted			101,504				72,024				62,362

Outstanding Stock Options and Stock Awards Excluded from Calculation of Net Loss Per Share

		December 31,
		2020				2019				2018
Outstanding securities not included in diluted net loss per    share calculation (in thousands):
Stock options and stock awards			10,299				9,789				7,344
Series B Convertible Preferred Stock (as converted to common stock)			4,140				4,840				-
Warrants (as exercisable into common stock)			-				5,841				-

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- References

No definition available.

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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