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Accounts Payable and Accrued and Other Liabilities - Other Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Payables and Accruals [Abstract] |  |
Non-current deferred revenues | $ 26,754 | $ 24,409
Long-term taxes payable | 86,751 | 63,565
Benefit plan-related liabilities | 128,199 | 108,615
Non-current deferred tax liabilities | 173,233 | 189,814
Other, including long-term portion of fair value of interest rate swap contracts | 124,656 | 93,343
Total other liabilities | $ 539,593 | $ 479,746

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