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Income Taxes - Narrative (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax [Line Items] |  |  |  |  |
Net tax benefit attributable to outside basis differences recognized on legal entity restructuring | $ 277,200,000 |  |  |  |
Tax cuts and jobs act provisional income tax expense benefit |  |  |  |  | $ 158,000,000.0
Income tax benefit remeasurement of deferred tax assets and liabilities |  |  |  |  | $ 14,600,000
Provision for income taxes attributable to tax act |  |  |  | $ 13,300,000 |
Payment of transition tax in annual interest-free installments period |  | 8 years |  |  |
Tax liability transition tax payable | 93,647,000 | $ 54,761,000 | $ 93,647,000 |  |
Deferred tax liabilities operating lease assets | 314,433,000 | 366,671,000 | 314,433,000 |  |
Federal net operating losses, deferred tax asset before valuation allowance |  | 1,800,000 |  |  |
Deferred tax assets before valuation allowances for state NOLs |  | 300,200,000 |  |  |
Deferred tax assets that do not satisfy realization criteria | 251,922,000 | 291,096,000 | 251,922,000 |  |
Undistributed earnings |  | 3,000,000,000.0 |  |  |
Additional undistributed foreign earnings |  | 0 |  |  |
Unrecognized tax benefits | 141,164,000 | 168,516,000 | 141,164,000 | 94,962,000 |
Unrecognized tax benefits that would affect our effective tax rate | 44,500,000 | 54,900,000 | 44,500,000 |  |
Unrecognized tax benefits that would affect our effective tax rate, net of federal benefits received | 42,700,000 | 52,300,000 | 42,700,000 |  |
Additional interest and penalties accrued |  | 400,000 | 300,000 | $ 600,000 |
Liability for interest and penalties | 3,800,000 | 1,600,000 | 3,800,000 |  |
Interest expense | 3,100,000 | 1,300,000 | 3,100,000 |  |
Expiration of Federal Statute Limitations 2016 Tax Year |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Gross unrecognized tax benefits released |  | 11,800,000 |  |  |
Income tax benefits related to decreases in tax positions |  | 8,400,000 |  |  |
Income tax benefits related to interest and penalties |  | 3,400,000 |  |  |
Foreign NOLs | Luxembourg |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Increase (decrease) in valuation allowance |  | 39,200,000 |  |  |
State |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Tax liability transition tax payable |  | 54,800,000 |  |  |
Federal |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Net operating loss carryforwards | $ 320,300,000 | 8,800,000 | $ 320,300,000 |  |
Federal net capital losses, deferred tax asset before valuation allowance |  | $ 28,400,000 |  |  |
Operating loss carryforward, expiration period begins |  | 2037 |  |  |
Federal | Capital Loss Carryforward |  |  |  |  |
Income Tax [Line Items] |  |  |  |  |
Capital loss carryforward |  | $ 135,200,000 |  |  |

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