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Subsequent Events (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended
Apr. 01, 2021
Apr. 23, 2021
Mar. 31, 2021
Mar. 31, 2020
Common Shares        
Subsequent Event [Line Items]        
Share repurchase program, shares repurchased (in shares)     1,076,344  
Repurchase of shares     $ 171,600  
Share repurchase program, price per share (in dollars per share)     $ 159.47  
Medici        
Subsequent Event [Line Items]        
Capital raised     $ 40,845 $ 54,613
Subsequent Event | Common Shares        
Subsequent Event [Line Items]        
Share repurchase program, shares repurchased (in shares)   330,000    
Repurchase of shares   $ 55,300    
Share repurchase program, price per share (in dollars per share)   $ 167.62    
Subsequent Event | Medici        
Subsequent Event [Line Items]        
Capital raised $ 100,000      
Medici        
Subsequent Event [Line Items]        
Parent company ownership in redeemable noncontrolling interest     15.40% 11.20%
Medici | Subsequent Event        
Subsequent Event [Line Items]        
Parent company ownership in redeemable noncontrolling interest 13.70%