Management Agreements and Leases - Narrative and Hotel Agreements (Details)	9 Months Ended
	Sep. 30, 2021 hotel property agreement tenant
Management Agreements and Leases [Line Items]
Number of operating agreements | agreement	6
Hotel
Management Agreements and Leases [Line Items]
Number of properties owned	304
Number of operating agreements | agreement	6
Hotel | Minimum
Management Agreements and Leases [Line Items]
Number of real estate properties leased or managed	1
Hotel management agreements and leases, renewal period	1 year
Hotel | Maximum
Management Agreements and Leases [Line Items]
Number of properties owned	208
Hotel management agreements and leases, renewal period	60 years
Net Lease Property
Management Agreements and Leases [Line Items]
Number of properties owned | property	794
Number of tenants | tenant	175