v3.25.4
Share-based payments - Summary of Employee Share Options (Detail)
12 Months Ended
Dec. 31, 2025
Warrants
shares
$ / shares
Dec. 31, 2024
Warrants
shares
$ / shares
Dec. 31, 2023
shares
Warrants
$ / shares
Additional Grants Under 2020 and 2022 Plan [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Weighted average exercise price, Outstanding at January 1, $ 9.94 $ 9.87 $ 10.07
SARs forfeited 9.54 11.25 9.7
SARs exercised 8.87 9.92 9.96
SARs expired 10.37 9.91 10.85
Weighted average exercise price, Outstanding at December 31, 9.35 9.94 9.87
SARs exercisable $ 10.11 $ 10.03 $ 10.06
Number of share options, outstanding at January 1, | Warrants 10,089,474 7,757,974 6,129,160
SARs forfeited | Warrants 151,493 202,520 326,895
SARs exercised | Warrants 5,862 91,844 12,832
SARs expired | Warrants 178,471 65,686 36,297
Number of share options, outstanding at December 31, | Warrants 11,889,848 10,089,474 7,757,974
SARs exercisable | Warrants 6,983,155 4,811,500 3,048,090
Weighted average remaining contract life (years) 6 years 11 months 4 days 7 years 4 months 28 days 8 years 4 months 28 days
Additional Grants Under 2020 and 2022 Plan [Member] | Granted On March 2021 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
SARs granted $ 6.62 $ 10.24 $ 9.28
SARs granted | Warrants 2,136,200 2,691,550 2,004,838
Performance Based Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Weighted average exercise price, Outstanding at January 1, $ 10.09 $ 10.08 $ 10.08
SARs forfeited 10 10 10
Weighted average exercise price, Outstanding at December 31, 10.1 10.09 10.08
SARs exercisable $ 0 $ 0 $ 0
Number of share options, outstanding at January 1, | shares 3,680,000 3,642,000 3,666,000
SARs forfeited | shares 12,000 12,000 24,000
Number of share options, outstanding at December 31, | shares 3,668,000 3,680,000 3,642,000
SARs exercisable | shares 0 0 0
Weighted average remaining contract life (years) 4 years 7 months 6 days 5 years 7 months 6 days 6 years 6 months 18 days
Performance Based Options [Member] | Granted On February 2024 [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
SARs granted $ 0 $ 11.15 $ 0
SARs granted | shares 0 50,000 0
Matching Stock Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Weighted average exercise price, Outstanding at January 1, $ 10 $ 10 $ 10
SARs forfeited 10    
SARs exercised 0 10 10
SARs expired 10 10 10
Weighted average exercise price, Outstanding at December 31, 10 10 10
SARs exercisable $ 10 $ 10 $ 10
Number of share options, outstanding at January 1, | Warrants 1,315,798 1,342,648 1,348,004
SARs forfeited | Warrants 4,950    
SARs exercised | Warrants 0 25,938 720
SARs expired | Warrants 20,166 912 4,636
Number of share options, outstanding at December 31, | Warrants 1,290,682 1,315,798 1,342,648
SARs exercisable | Warrants 1,290,682 1,315,798 1,342,648
Weighted average remaining contract life (years) 4 years 6 months 5 years 6 months 6 years 6 months
Converted Options [Member]      
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Weighted average exercise price, Outstanding at January 1, $ 2.9 $ 2.81 $ 2.74
SARs forfeited 1.5 0 1.14
SARs exercised 1.08 1.22 1.24
SARs expired 1.37 1.24 0.85
Weighted average exercise price, Outstanding at December 31, 2.97 2.9 2.81
SARs exercisable $ 2.97 $ 2.9 $ 2.81
Number of share options, outstanding at January 1, | Warrants 477,842 503,310 525,181
SARs forfeited | Warrants 2,275 0 909
SARs exercised | Warrants 15,401 23,207 20,951
SARs expired | Warrants 2,451 2,261 11
Number of share options, outstanding at December 31, | Warrants 457,715 477,842 503,310
SARs exercisable | Warrants 457,715 477,842 503,310
Weighted average remaining contract life (years) 2 years 3 years 4 years 3 days