XML 109 R101.htm IDEA: XBRL DOCUMENT v3.25.0.1
Financial risk management - Hedging activities (Details)
$ in Thousands
Dec. 31, 2024
USD ($)
$ / £
Jun. 30, 2024
USD ($)
$ / £
Dec. 31, 2023
USD ($)
$ / £
Financial risk management activities      
Closing exchange rate | $ / £ 1.2540 1.2643 1.2746
US dollar      
Financial risk management activities      
Net debt $ 631,900 $ 640,500 $ 616,800
Hedged future USD revenues (331,000) (172,500) (253,600)
Unhedged USD borrowings 300,900 468,000 363,200
Borrowings | US dollar      
Financial risk management activities      
Net debt 650,000 650,000 650,000
Cash and cash equivalents | US dollar      
Financial risk management activities      
Net debt $ (18,100) $ (9,500) $ (33,200)