Lease Income - Lease Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Fixed lease payments	$ 600,474	$ 702,482
Variable lease payments	73,542	96,040
Total lease payments	674,016	798,522
Amortization of acquired above and below-market leases	4,160	5,901
Total rental revenue	678,176	804,423	$ 983,557
Sublease Income	229,200	237,900
Loss recognized at commencement, net	0	(6,237)
Interest income	4,422	1,817
Total gain (loss) recognized on sales-type leases	$ 4,422	$ (4,420)