Management Agreements and Leases - Radisson Agreement (Details) - Hotel $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) hotel	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) hotel	Sep. 30, 2019 USD ($)
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	329		329
Operating agreement annual rent and return			$ 38,901
Radisson Agreement
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	9		9
Operating agreement annual rent and return			$ 20,442
Realized returns and rents	$ 5,111	$ 5,099	15,332	$ 14,945
Guarantee provided to the entity, maximum	47,523		47,523
Increase (decrease) in guaranty			21,729
Guarantee provided to the entity, remaining amount	$ 19,487		$ 19,487
Percent payment of hotel cash flows	50.00%		50.00%
Percent of gross revenues from hotel operations placed in FF&E reserve			5.00%