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Stockholders' Equity - Stock Incentive Plan - Shares Available for Future Grant (Details) - shares | 12 Months Ended |
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Dec. 31, 2020 | Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] |  |
Shares available for grants under stock incentive plan (in shares) | 5,287,341 | 3,124,254
Annual increase period | 10 years |
Annual increase percentage (as a percent) | 4.00% |

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- Definition Common Stock, Capital Shares Reserved for Future Issuance, Annual Increase, Percentage + References No definition available. + Details
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- Definition Common Stock, Capital Shares Reserved for Future Issuance, Annual Increase, Term + References No definition available. + Details
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- References No definition available. + Details
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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