XML 67 R55.htm IDEA: XBRL DOCUMENT v3.21.1
Fair Value Measurement - Narrative (Details) - Phantom Stock Appreciation Rights (PSARs)
3 Months Ended
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