Management Agreements and Leases - Radisson Agreement (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) retail_property hotel	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Management Agreements and Leases [Line Items]
Number of properties | retail_property	816
Annual minimum returns and rents	$ 381,679
Capital improvements from leased facilities, funded	$ 150,531	$ 182,862	$ 131,120
Hotel operating revenues
Management Agreements and Leases [Line Items]
Number of properties | hotel	329
Guarantee provided to the entity, maximum	$ 30,000
Radisson | Hotel operating revenues
Management Agreements and Leases [Line Items]
Number of properties | hotel	9
Annual minimum returns and rents	$ 20,443
Realized returns and rents	20,056	$ 16,183	$ 12,920
Increase in guaranty, maximum	1,523
Guarantee provided to the entity, maximum	47,523
Increase in guarantee	(1,343)
Guarantee provided to the entity, remaining amount	41,216
Capital improvements from leased facilities, funded	$ 19,034