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EMPLOYEE SAVINGS PLANS (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Deferred compensation liability | $ 90.2 | $ 78.4 |
Deferred compensation liability, current | 6.1 | 5.3 |
UNITED STATES |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Matching contributions paid | 8.4 | 3.6 | $ 6.6
UNITED KINGDOM |  |  |
Deferred Compensation Arrangement with Individual, Postretirement Benefits |  |  |
Matching contributions paid | $ 3.8 | $ 2.9 | $ 3.7

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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for all deferred compensation arrangements payable within one year (or the operating cycle, if longer). Represents currently earned compensation under compensation arrangements that is not actually paid until a later date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 25 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=6409733&loc=d3e19512-108361 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 710 -SubTopic 10 -Section 30 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6409875&loc=d3e20028-108363 + Details
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