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Fair Value Measurement - Narrative (Details) - Phantom Stock Appreciation Rights (PSARs) |  | 3 Months Ended
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Dec. 31, 2019 | Mar. 31, 2021 $ / shares unit
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Vesting period | 4 years |
Level 3 | Fair Value, Recurring |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Vesting period |  | 4 years
Level 3 | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Number of unites used in fair value measurement | unit |  | 1
Level 3 | Measurement Input, Share Price | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Share Based Compensation, Measurement Input |  | 50.46
Level 3 | Measurement Input, Base Price | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Base price per unit (in dollars per unit) |  | $ 13.00
Level 3 | Measurement Input, Price Volatility | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Share Based Compensation, Measurement Input |  | 0.2930
Level 3 | Measurement Input, Expected Term | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Expected term |  | 2 years 9 months 18 days
Level 3 | Measurement Input, Risk Free Interest Rate | Fair Value, Recurring | Yandy |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Share Based Compensation, Measurement Input |  | 0.0030

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- Definition Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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