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Net loss per share - (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted net loss available to common stockholders

The following table sets forth the computation of basic and diluted net loss per share for common stockholders:

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​	​	​	​	​	​	​	​	​	​	​
​	​	Year ended December 31,								​
​	​	2021			2020			2019		​
Numerator	​	​	​	​	​	​	​	​	​	​
Net loss	​	$	(523,901)		$	(438,160)		$	(251,576)
Denominator	​	​	​	​	​	​	​	​	​
Denominator for basic and diluted net loss per share	​		70,466,393			66,027,908			58,863,185
Net loss per share:	​	​	​	​	​	​	​	​	​
Basic and diluted	​	$	(7.43)	*	$	(6.64)	*	$	(4.27)	*

* For the years ended December 31, 2021, 2020, and 2019, the Company experienced a net loss and therefore did not report any dilutive share impact.

Schedule of historical dilutive common share equivalents outstanding

The following table shows historical dilutive common share equivalents outstanding, which are not included in the above historical calculation, as the effect of their inclusion is anti-dilutive during each period.

​

​	​	​	​	​	​	​
​	​	As of December 31,
​		2021		2020		2019
Stock Options	​	10,772,582	​	9,663,677	​	11,043,939
Unvested restricted stock awards and units		1,519,831		982,058		642,419
Total		12,292,413		10,645,735		11,686,358

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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=124432515&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=124432515&loc=d3e3550-109257

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