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Income Taxes - Schedule of Classification of Deferred Tax Assets and Deferred Tax Liabilities in Consolidated Balance Sheets (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Deferred tax assets and deferred tax liabilities as presented in consolidated balance sheets |  |
Long-term deferred tax assets, net | $ 72.9 | $ 21.8
Long-term deferred tax liability, net | (153.0) | (155.7)
Net deferred tax liabilities | $ (80.1) | $ (133.9)

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