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Summary of Significant Accounting Policies - Other Expense (Income), Net (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Foreign currency transaction losses (gains), net |  | $ 24,852 | $ (15,567) | $ 43,248
Debt extinguishment expense, net |  | 0 | 0 | 78,368
Other, net |  | 9,046 | 3,875 | (42,187)
Other Expense (Income), Net |  | 33,898 | (11,692) | 79,429
Gain on divestiture |  | $ 0 | $ 0 | 38,869
Disposal Group, Not Discontinued Operations | Russia and Ukraine Divestment |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Gain on divestiture | $ 38,869 |  |  | $ 38,869

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