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Goodwill
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The change in the carrying amount of goodwill for the years ended December 31, 2024 and 2023 is as follows:
December 31, 2024December 31, 2023
 (in thousands)
Opening balance$9,022,075 $8,971,670 
Current period acquisitions (note 6)46,126 36,750 
Foreign exchange movement(16,791)13,655 
Closing balance$9,051,410 $9,022,075 
There were no impairment charges for the year ended December 31, 2024 or the year ended December 31, 2023.