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EMPLOYEE SAVINGS PLANS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Deferred compensation liability | $ 108.4 | $ 100.4 |
Deferred compensation liability, current | 8.1 | 3.9 |
UNITED STATES |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Matching contributions paid | 11.7 | 10.9 | $ 8.4
UNITED KINGDOM |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Matching contributions paid | $ 5.2 | $ 4.5 | $ 3.8

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