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Summary of Significant Accounting Policies - Other Expense (Income), Net - Foreign Currency Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jan. 08, 2020
Accounting Policies [Abstract]
Foreign currency transaction losses (gains), net	$ 29,635	$ (18,251)	$ (6,293)	$ (19,885)
Debt extinguishment expense	51,260	0	68,300	0
Other, net	2,570	4,836	4,432	6,488
Other Expense (Income), Net	$ 83,465	$ (13,415)	$ 66,439	$ (13,397)
OSG Investment
Schedule of Equity Method Investments [Line Items]
Ownership percentage	25.00%		25.00%		25.00%

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