v3.26.3
STOCK-BASED COMPENSATION - Summary of RSUs, Share Awards, PSUs, DSUs Activity (Detail) - shares
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Sep. 30, 2026
Sep. 30, 2025
Restricted Stock Units Time Based [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of units, Outstanding at the beginning   8,181,585 10,260,791
Granted   887,450 25,000
Vested or settled   (3,978,093) (1,710,138)
Withheld to settle employee tax obligations   (3,020,798) (335,975)
Forfeited or expired   (374,023) (439,119)
Number of units, Outstanding at the end   1,696,121 7,800,559
Restricted Share Units ("RSUs") Performance-Based [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of units, Outstanding at the beginning   0 45,177
Granted 150,000 0 0
Vested or settled   0 0
Withheld to settle employee tax obligations   0 0
Forfeited or expired   0 (45,177)
Number of units, Outstanding at the end   0 0
Performance Share Units ("PSUs") [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of units, Outstanding at the beginning   2,597,608 1,845,608
Granted   1,193,750 0
Vested or settled   0 0
Withheld to settle employee tax obligations   0 0
Forfeited or expired   (922,804) 0
Number of units, Outstanding at the end   2,868,554 1,845,608
Deferred Share Units ("DSUs") [Member]      
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Number of units, Outstanding at the beginning   3,464,988 4,033,894
Granted   819,429 780,025
Vested or settled   0 (1,234,487)
Withheld to settle employee tax obligations   0 0
Forfeited or expired   0 (347,628)
Number of units, Outstanding at the end   4,284,417 3,231,804