Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Lessee, Lease, Description [Line Items]
Rental and other revenues related to operating lease payments	$ 389,960	$ 381,084
Rental and other revenues related to operating lease payments, variable leases	$ 55,754	$ 47,350
Minimum
Lessee, Lease, Description [Line Items]
Lease term extension period	1 year
Maximum
Lessee, Lease, Description [Line Items]
Lease term extension period	25 years