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Retirement Benefit Obligations - Schedule of Estimated Future Benefit Payments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Pension Benefits |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | $ 14,767 | $ 15,810 | $ 16,452
Pension Benefits | Year 1 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 1,368 | 1,368 | 956
Pension Benefits | Year 2 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 888 | 919 | 948
Pension Benefits | Year 3 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 861 | 896 | 926
Pension Benefits | Year 4 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 825 | 869 | 904
Pension Benefits | Year 5 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 796 | 833 | 877
Pension Benefits | Years 6-10 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 3,540 | 3,736 | 3,924
Pension Benefits | Years 10+ |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 6,489 | 7,189 | 7,917
Other post-retirement benefits |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 1,758 | 1,604 | 1,632
Other post-retirement benefits | Year 1 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 135 | 113 | 103
Other post-retirement benefits | Year 2 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 101 | 102 | 108
Other post-retirement benefits | Year 3 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 108 | 99 | 111
Other post-retirement benefits | Year 4 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 112 | 101 | 92
Other post-retirement benefits | Year 5 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 107 | 96 | 94
Other post-retirement benefits | Years 6-10 |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | 462 | 405 | 409
Other post-retirement benefits | Years 10+ |  |  |
Disclosure of defined benefit plans [line items] |  |  |
Estimate of benefit payments expected to be paid from defined benefit plan | $ 733 | $ 688 | $ 715

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