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Shareholders' Capital (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2022
CAD ($)
shares
vote
$ / shares
Dec. 31, 2021
CAD ($)
shares
Shares repurchased and cancelled, average price (in dollars per share) | $ / shares $ 6.54  
Repurchase of common shares $ (158,977) $ 0
Number of Common Shares    
Vesting of share awards (in shares) | shares 5,007,000 3,013,000
Changes in equity [abstract]    
Beginning balance $ 2,211,329 $ 578,213
Vesting of share awards 3,159 6,389
Repurchase of common shares for cancellation (158,977)  
Ending balance $ 3,030,417 $ 2,211,329
Shareholders’ capital    
Shares authorized for repurchase and cancellation (in shares) | shares 56,300,000  
Purchase of treasury shares, repurchase period 12 months  
Number of shares authorized for repurchase as percentage of public float (in shares) 10.00%  
Number of Common Shares    
Beginning balance (in shares) | shares 564,213,000 561,227,000
Vesting of share awards (in shares) | shares 5,035,000 2,986,000
Common shares repurchased and cancelled (in shares) | shares (24,318,000)  
Ending balance (in shares) | shares 544,930,000 564,213,000
Changes in equity [abstract]    
Beginning balance $ 5,736,593 $ 5,729,418
Vesting of share awards   7,175
Repurchase of common shares for cancellation (245,430)  
Ending balance $ 5,499,664 $ 5,736,593
Preference shares    
Preferred shares without nominal or par value (in shares) | shares 10,000,000  
Issued on corporate acquisition (in shares) | shares 0  
Ordinary shares    
Voting rights, votes per share | vote 1