Summary of Significant Accounting Policies - Segment and Geographic Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of operating segments | segment			1
Number of reportable segments | segment			1
Total operating revenues	$ 1,024,668	$ 806,466	$ 2,841,000	$ 2,421,778
Net investments in real estate	20,462,514		20,462,514		$ 15,517,684
Outside the United States
Summary Of Significant Accounting Policies [Line Items]
Total operating revenues	368,900	146,700	906,300	475,900
Net investments in real estate	8,200,000		8,200,000		3,700,000
United States
Summary Of Significant Accounting Policies [Line Items]
Total operating revenues	655,800	$ 659,800	1,900,000	$ 1,900,000
Net investments in real estate	$ 11,200,000		$ 11,200,000		$ 10,600,000