v3.26.1
Intangible assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Definite-lived intangible assets    
Accumulated Amortization $ (31,408) $ (24,916)
Indefinite-lived intangible assets    
Total intangible assets, Gross Carrying Amount 225,790 225,790
Total Intangible Assets, Currency Translation Adjustment (4,024) (13,278)
Total Intangible Assets, Net Carrying Amount 190,358 187,596
Easements    
Indefinite-lived intangible assets    
Gross Carrying Amount 1,191 1,191
Currency Translation Adjustment 24 56
Net Carrying Amount 1,215 1,247
Acquired capacity reserve contract    
Definite-lived intangible assets    
Gross Carrying Amount 162,045 162,045
Accumulated Amortization (20,700) (15,146)
Currency Translation Adjustment (5,647) (14,908)
Net Carrying Amount $ 135,698 $ 131,991
Weighted Average Life 17 years 17 years
Permits and development rights    
Definite-lived intangible assets    
Gross Carrying Amount $ 61,894 $ 61,894
Accumulated Amortization (10,496) (9,572)
Currency Translation Adjustment 1,599 1,574
Net Carrying Amount $ 52,997 $ 53,896
Weighted Average Life 34 years 34 years
Easements    
Definite-lived intangible assets    
Gross Carrying Amount $ 660 $ 660
Accumulated Amortization (212) (198)
Net Carrying Amount $ 448 $ 462
Weighted Average Life 30 years 30 years