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Investments and Fair Value Measurement - Summary of Unobservable Inputs (Details) | 9 Months Ended
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Sep. 30, 2021 $ / shares
Relative weighting | Option Pricing Model |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.40
Relative weighting | Common Stock Equivalent |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.60
Transaction price per share | Option Pricing Model |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 6.16
Volatility | Option Pricing Model |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.64
Estimated time to liquidity | Option Pricing Model |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.05
Estimated time to liquidity | 1 year 3 months
Estimated time to liquidity | Common Stock Equivalent |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Estimated time to liquidity | 3 months
Discount rate | Common Stock Equivalent |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Measurement input | 0.25

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- Definition Value of input used to measure investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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