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Summary of Shares Outstanding Under Share Based Incentive Plans (Detail) - shares
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Redeemed (189,964)  
Restricted Share Units (RSUs) [Member]    
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Beginning balance 598,156 484,782
Granted 180,710 356,928
Redeemed (266,876) (216,820)
Forfeited (16,822) (26,734)
Ending balance 495,168 598,156
Performance Share Units (PSUs) [Member]    
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Beginning balance 983,734 565,379
Granted 311,579 488,510
Redeemed (143,659) (40,515)
Forfeited (14,983) (29,640)
Ending balance 1,136,671 983,734
Deferred Share Units (DSUs) [Member]    
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Beginning balance 104,591 77,574
Granted 14,183 27,017
Ending balance 118,774 104,591
Executive Performance Share Units [Member]    
Disclosure of terms and conditions of share-based payment arrangement [Line Items]    
Beginning balance 189,964 288,707
Redeemed (189,964) (96,355)
Forfeited   (2,388)
Ending balance 0 189,964