Derivative Instruments - Realized and Unrealized Gain (Loss) on Derivatives Not Designated as Hedging Instruments (Details) - Not Designated as Hedging Instrument - Cross currency and interest rate swaps - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivative [Line Items]
Unrealized gain	$ 0	$ 283	$ 0	$ 4,305
Realized (loss) gain	0	0	(626)	4,861
Gain (loss) on derivatives, net	$ 0	$ 283	$ (626)	$ 9,166