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INCOME TAXES - Components of Deferred Income Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Deferred income tax assets: |  |
Net operating and capital loss carryforwards | $ 101.2 | $ 110.2
Goodwill and intangible assets | 116.0 | 114.6
Employee compensation programs | 59.8 | 45.3
Foreign tax credits | 17.2 | 17.2
Employee pension benefits | 26.6 | 26.7
Reserves and accrued expenses | 6.4 | 10.1
Accrued legal expense | 9.1 | 7.1
Research and development costs | 22.3 | 32.6
Operating lease asset | 25.0 | 19.3
Other | 24.3 | 18.3
Gross deferred income tax assets | 407.9 | 401.4
Valuation allowance | (178.5) | (185.1)
Total deferred income tax assets, net | 229.4 | 216.3
Deferred income tax liabilities: |  |
Goodwill and intangible assets | (615.9) | (582.6)
Undistributed earnings of foreign subsidiaries | (6.2) | (6.0)
Depreciation | (29.8) | (26.6)
Operating lease liability | (25.0) | (19.3)
Prepaid expenses | (15.0) | (11.3)
Investment basis difference | (0.1) | (23.4)
Other | (2.1) | (0.8)
Total deferred income tax liability | (694.1) | (670.0)
Net deferred income tax liability | $ (464.7) | $ (453.7)

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