Aggregate number of common shares reserved for future issuance.

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+ References

No definition available.

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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Number of options outstanding, including both vested and non-vested options.

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Stockholders' Deficit - Schedule of Outstanding Awards Issued to Share-based Payment Award Plan and Inducement Grants (Details) - shares	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options	17,655,000	23,782,000	25,030,000	20,873,000
2019 Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares common stock available	13,054
2019 Plan [Member] \| Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options	3,332
2019 Plan [Member] \| Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs/PSUs	10,174
2019 Plan [Member] \| Performance Shares Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs/PSUs	5,193
2012 Plan [Member] \| Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options	4,601
2009 Plan [Member] \| Options [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Options	9,722
2021 Inducement Grants [Member] \| Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs/PSUs	3,410
2021 Inducement Grants [Member] \| Performance Shares Unit [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
RSUs/PSUs	3,010