v3.26.1
Related party transactions (Details) - USD ($)
$ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
May 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Disclosure of transactions between related parties [line items]              
Royalty expense       $ 1,400 $ 1,600    
Other expense   $ 44 $ 45 186 94    
Right-of-use assets   4,466 3,946 4,466 3,946 $ 4,273 $ 4,308
Lease liabilities   5,009 4,340 5,009 4,340 4,753 $ 4,673
Payments       1,149 665    
Interest expenses       158 118    
4.6% Senior Notes              
Disclosure of transactions between related parties [line items]              
Accrued interest on 4.6% Senior Notes with related party $ 3,100            
Interest expense   384 409 771 799    
Controlling shareholder              
Disclosure of transactions between related parties [line items]              
Royalty expense   1,661 408 2,674 854    
Other expense   1,310 1,624 2,694 3,417    
Accounts payable and accrued expenses   1,887   1,887   1,571  
Other receivables   10   10   6  
Right-of-use assets   2,338   2,338   1,682  
Lease liabilities   2,515   2,515   1,797  
Payments   304 174 616 343    
Interest expenses   26 $ 25 56 $ 50    
Controlling shareholder | 4.6% Senior Notes              
Disclosure of transactions between related parties [line items]              
4.6% Senior notes with related party   $ 32,436   32,436   34,846  
Accrued interest on 4.6% Senior Notes with related party       $ 143   $ 2,562