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Earnings (Loss) Per Share - Reconciliation of Common Stock Issued and Outstanding (Details) - shares
6 Months Ended
Jun. 30, 2021
Dec. 31, 2020
Common Stock Issued [Roll Forward]    
Common shares issued at beginning of period (shares) 423,418,131  
Shares issued (shares) 8,400,366  
Common shares issued at end of period (shares) 431,818,497  
Less: treasury shares (shares) 722,484 465,903
Common shares outstanding as of end of period (shares) 431,096,013 422,952,228