v3.26.1
Deferred revenue (Tables)
 12 Months Ended
Dec. 31, 2025
Disclosure of Deferred Revenue [Abstract]  
Disclosure of detailed information about changes in deferred revenue [Table Text Block]
Balance, January 1, 2024 $ 418.5  
Amortization of deferred revenue      
Liability drawdown   (74.3 )
Variable consideration adjustments - prior periods   3.8  
Accretion on streaming arrangements      
Current year additions   24.0  
Variable consideration adjustments - prior periods   0.2  
Balance, December 31, 2024 $ 372.2  
Amortization of deferred revenue (note 6a)      
Liability drawdown   (65.1 )
Variable consideration adjustments - prior periods   (9.9 )
Accretion on streaming arrangements (note 6h)      
Current year-to-date additions   20.5  
Variable consideration adjustments - prior periods   (0.6 )
Balance, December 31, 2025 $ 317.1  
Disclosure of detailed information about deferred revenue [Table Text Block]
    Dec. 31, 2025     Dec. 31, 2024  
Current $ 52.1   $ 63.1  
Non-current   265.0     309.1  
  $ 317.1   $ 372.2