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RETIREMENT PLANS (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
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Defined Benefit Plan Disclosure [Line Items] |  |  |
Projected Benefit Obligation | $ 6.9 | $ 6.6 |
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Plan Assets | 9.7 | 8.2 |
Business Acquisition, Purchase Price Allocation, Projected Benefit Obligation (Asset), Net of Plan Assets Acquired | 16.6 | 14.8 |
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year | 0.4 |  |
Defined Benefit Pension Items |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax | $ 1.6 | $ 2.5 | $ 0.7

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