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Stockholder's Equity (Deficit) - Summary of Weighted Average Assumptions Used in Black-Sholes Option-pricing Model (Details) - $ / shares | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Common stock value (per share) | $ 37.61 | $ 31.60
Expected volatility | 58.01% | 31.87%
Risk-free interest rate | 0.71% | 1.78%
Expected life (years) |  | 7 years
Forfeiture rate | 0.00% | 0.00%
Dividend rate | 0.00% | 0.00%
Minimum |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Expected life (years) | 5 years 6 months |
Maximum |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Expected life (years) | 7 years |

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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + 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 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. + 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 -Subparagraph (f)(2)(iv) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Rate of weighted-average expected volatility for award under share-based payment arrangement. + 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 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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