Management Agreements and Leases - Radisson Agreement (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) hotel	Mar. 31, 2020 USD ($)
Hotel
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	310
Radisson Agreement | Hotel
Management Agreements and Leases [Line Items]
Number of properties owned | hotel	9
Hotel | Radisson Agreement
Management Agreements and Leases [Line Items]
Operating agreement annual rent and return	$ 20,601
Realized returns and rents	5,150	$ 5,111
Guarantee provided to the entity, maximum	47,523
Increase (decrease) in guaranty	7,931
Guarantee provided to the entity, remaining amount	$ 5,306
Percent payment of hotel cash flows	50.00%