Intangible Assets and Liabilities - Summary of Intangible Asset Account Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Beginning balance, Finite-lived intangible assets, gross	$ 981,160	$ 769,851
Intangible assets acquired	0	242,039
Effect of change in exchange rates	(1,346)	(30,730)
Ending balance, Finite-lived intangible assets, gross	979,814	981,160
Finite-lived intangible liabilities, gross	(23,900)	(23,900)	$ 0
Customer contracts and relationships	0	(23,900)
Effect of change in exchange rates	0	0
Intangible assets, gross (excluding goodwill)	$ 979,814	$ 981,160