v3.26.1
Derivative financial instruments - Schedule of Gains (Losses) Recorded as a Component of Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning balance, value $ 2,549,401 $ 2,389,611
Other comprehensive income (loss) (123,048) 29,137
End balance, value 2,475,193 2,453,061
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Opening balance, before tax amount (79,151) (29,271)
Opening balance, tax (expense) or benefit 19,815 6,809
Beginning balance, value (59,336) (22,462)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, before tax amount (11,495) (5,228)
Net gains (losses) reclassified into statement of income on completion of hedged transactions, tax (expense) or benefit 3,098 1,234
Net gains (losses) reclassified into statement of income on completion of hedged transactions, net of tax amount (8,397) (3,994)
Changes in fair value of effective portion of outstanding derivatives, net, before tax amount (90,111) 12,442
Changes in fair value of effective portion of outstanding derivatives, net, tax (expense) or benefit 22,815 (2,609)
Changes in fair value of effective portion of outstanding derivatives, net, net of tax amount (67,296) 9,833
Other comprehensive income (loss), before tax amount (78,616) 17,670
Other comprehensive income (loss), tax (expense) benefit amount 19,717 (3,843)
Other comprehensive income (loss) (58,899) 13,827
Closing balance, before tax amount (157,767) (11,601)
Closing balance, tax (expense) or benefit 39,532 2,966
End balance, value $ (118,235) $ (8,635)