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Shareholders' Equity - Narrative (Details)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2022
noncontrolling_interest
shares
class
vote
$ / shares
Jun. 30, 2021
$ / shares
shares
Jun. 30, 2022
noncontrolling_interest
shares
class
vote
£ / shares
Jun. 30, 2022
USD ($)
noncontrolling_interest
shares
class
vote
$ / shares
Jun. 30, 2021
USD ($)
$ / shares
shares
Mar. 31, 2022
shares
Dec. 31, 2021
shares
Mar. 31, 2021
shares
Dec. 31, 2020
shares
Jun. 15, 2020
shares
Class of Stock [Line Items]                    
Number of classes of stock | class 2   2 2            
Number of votes per share | vote 1   1 1            
Quarterly conversion basis 1   1 1            
Number of noncontrolling interests | noncontrolling_interest 4   4 4            
Dividends declared and paid (in dollars per share) | $ / shares   $ 0.17   $ 0.19            
Dividends declared and paid | $       $ 165.3 $ 138.6          
Requisite service period       1 year            
Deferred Shares                    
Class of Stock [Line Items]                    
Shares, outstanding (in shares) 365,302,000 355,217,000 365,302,000 365,302,000 355,217,000 363,521,000 361,170,000 321,128,000 316,407,000  
Common Class A                    
Class of Stock [Line Items]                    
Common shares outstanding 437,139,000   437,139,000 437,139,000     432,963,000      
Dividends declared and paid (in dollars per share) | $ / shares $ 0.19 $ 0.17   $ 0.38 $ 0.34          
Common Class A | 2020 Equity Incentive Plan                    
Class of Stock [Line Items]                    
Shares reserved for future issuance (in shares)                   800,000
Common Class B                    
Class of Stock [Line Items]                    
Common shares outstanding 170,081,000   170,081,000 170,081,000     174,213,000      
Class R Redeemable Stock                    
Class of Stock [Line Items]                    
Common shares outstanding 50,000   50,000 50,000     50,000      
Shares, outstanding (in shares) 50,000   50,000 50,000            
Redeemable stock, redemption price (in euros per share) | £ / shares     £ 1