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Retirement Benefit Obligations - Schedule Of Changes In the Fair Value of Plan Assets (Details) - Plan assets - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Pension Benefits    
Disclosure of defined benefit plans [line items]    
Beginning balance $ 10,501 $ 10,235
Return on plan assets 72 1,405
Contributions 0 0
Administrative expenses (87) (279)
Benefits paid (952) (860)
Ending balance 9,534 10,501
Other post-retirement benefits    
Disclosure of defined benefit plans [line items]    
Beginning balance 0 0
Return on plan assets 0 0
Contributions 99 72
Administrative expenses 0 0
Benefits paid (99) (72)
Ending balance $ 0 $ 0