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Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Deferred tax assets: |  |
Reserves and accrued expenses | $ 175.2 | $ 156.5
Inventories | 4.3 | 4.5
Net operating loss carryforwards | 111.2 | 67.9
R&D credits | 4.1 | 6.1
Valuation allowance | (36.3) | (26.4)
Outside basis difference on investments held for sale | 0.0 | 2.7
Lease liability | 64.0 | 0.0
Total deferred tax assets | 322.5 | 211.3
Deferred tax liabilities: |  |
Reserves and accrued expenses | 15.5 | 14.3
Amortizable intangible assets | 1,229.9 | 1,043.0
Plant and equipment | 10.8 | 6.6
Accrued tax on unremitted foreign earnings | 17.1 | 16.3
Outside basis difference on investments held for sale | 0.0 | 10.0
ROU asset | 61.7 | 0.0
Total deferred tax liabilities | $ 1,335.0 | $ 1,090.2

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