Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Pandora (Details)

v3.8.0.1
Related Party Transactions - Pandora (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Sep. 22, 2017
USD ($)
$ / shares
shares
Dec. 31, 2020
trading_day
$ / shares
Mar. 31, 2018
USD ($)
director
$ / shares
shares
Jun. 09, 2022
Sep. 22, 2020
Dec. 31, 2017
USD ($)
Related Party Transaction [Line Items]            
Preferred stock, par value (in dollars per share) | $ / shares     $ 0.001      
Pandora            
Related Party Transaction [Line Items]            
Fair value of investment     $ 511,847     $ 480,472
Pandora | Level 2            
Related Party Transaction [Line Items]            
Fair value of investment     $ 511,847     $ 480,472
Pandora | Series A Preferred Stock            
Related Party Transaction [Line Items]            
Number of shares issued (in shares) | shares 480,000          
Investee | Pandora            
Related Party Transaction [Line Items]            
Investment in convertible preferred stock $ 480,000          
Investment ownership percentage     19.00%      
Ownership percentage on an as-converted basis     16.00%      
Accrued dividends     $ 18,211      
Unrealized gain on investment     $ 31,375      
Minimum ownership percentage for director designation, converted basis     50.00%      
Minimum ownership percentage for designation of two directors, converted basis     75.00%      
Number of directors designated | director     2      
Investee | Pandora | Series A Preferred Stock            
Related Party Transaction [Line Items]            
Preferred stock, par value (in dollars per share) | $ / shares $ 0.0001          
Price per share (in dollars per share) | $ / shares     $ 10.50      
Common shares issued upon conversion (in shares) | shares     95.2381      
Preferred stock dividend rate, percentage     6.00%      
Liquidation preference     $ 498,211      
Percentage of liquidation preference 100.00%          
Investee | Pandora | Series A Preferred Stock | Forecast            
Related Party Transaction [Line Items]            
Percentage of liquidation preference       100.00% 100.00%  
Convertible preferred stock, stock trigger price (in dollars per share) | $ / shares   $ 18.375        
Convertible preferred stock, threshold trading days | trading_day   20        
Convertible preferred stock, threshold consecutive trading days | trading_day   30