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SUPPLEMENTARY INFORMATION RELATING TO THE NATURE OF EXPENSES (Costs relating to proxy contest and leadership changes and related matters) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Dec. 29, 2024 | Dec. 31, 2023
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Proxy contest and leadership changes and related matters |  |  | $ 82,700 | $ 6,300
Advisory fees |  |  | 36,700 |
Termination benefits expense |  |  | 21,600 |
Accelerated vesting expense | $ 12,000 |  | 12,300 |
Key management personnel compensation |  |  | 64,263 | 28,956
Short-term employee benefits |  |  | 10,964 | 5,950
Share-based payments |  |  | 53,577 | $ 18,376
Incremental costs |  |  | 8,700 |
Expense from share-based payment transactions |  |  | 3,800 |
Incremental fair value granted, modified share-based payment arrangements |  |  | 8,600 |
Advisory, legal and other expenses |  |  | 3,000 |
Mr. Bajaj |  |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Expense from cash-settled share-based payment transactions |  |  | 2,500 |
Mr. Chamandy |  |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Termination benefits expense |  | $ 9,800 |  |
Key management personnel compensation |  |  | 8,900 |
Short-term employee benefits |  |  | 1,700 |
Share-based payments |  | $ (6,000) | 17,000 |
Run-Off Insurance Policy |  |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Incremental costs |  |  | 4,800 |
Special Board Meeting Fee Payments |  |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Incremental costs |  |  | 600 |
Increase In Value Of Deferred Share Units Liability |  |  |  |
Disclosure of attribution of expenses by nature to their function [line items] |  |  |  |
Incremental costs |  |  | $ 3,300 |

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