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Summary of Significant Accounting Policies Summary of Significant Accounting Policies - Other Expense (Income), Net - Foreign Currency Transactions (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Jan. 08, 2020
Accounting Policies [Abstract] |  |  |  |  |
Foreign currency transaction losses (gains), net | $ 1,471 | $ (19,331) | $ (35,928) | $ (1,634) |
Debt extinguishment expense | 17,040 | 0 | 17,040 | 0 |
Other, net | 7,189 | 4,139 | 1,862 | 1,652 |
Other Expense (Income), Net | $ 25,700 | $ (15,192) | $ (17,026) | $ 18 |
OSG Investment |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |
Ownership percentage | 25.00% |  | 25.00% |  | 25.00%

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