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Fair Value Measurements - Additional Information (Details) - Measurement input, discount for lack of marketability	Dec. 31, 2020
Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, FV-NI, measurement input	0.150
Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, FV-NI, measurement input	0.340
Weighted average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Equity securities, FV-NI, measurement input	0.248

X

- Definition

Value of input used to measure investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ 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=117815213&loc=d3e19207-110258

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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