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Income Taxes - Tax Effects of Temporary Differences Representing Deferred Tax Assets/Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred tax assets: |  |
Loss reserves and accruals | $ 52.9 | $ 42.8
Interest rate swaps | 10.0 | 1.3
U.S. state net operating loss (“NOL”) carryforwards | 34.5 | 38.2
Foreign NOL carryforwards | 28.9 | 37.6
Operating lease liabilities | 56.9 | 55.5
Goodwill and intangible franchise rights | 2.6 | 0.0
Other | 2.2 | 1.5
Deferred tax assets | 188.0 | 176.9
Less: valuation allowance on deferred tax assets | 60.5 | 69.7
Net deferred tax assets | 127.5 | 107.2
Deferred tax liabilities: |  |
Goodwill and intangible franchise rights | 142.0 | 135.1
Depreciation expense | 71.1 | 68.0
Operating lease ROU assets | 45.0 | 45.4
Other | 2.0 | 0.0
Deferred tax liabilities | 260.1 | 248.5
Net deferred tax liability | $ 132.6 | $ 141.3

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