Commitments and Contingencies (Management Agreements) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) property	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) property increment	Sep. 30, 2018 USD ($)	Sep. 30, 2019 hotel	Jun. 30, 2016 hotel
Other Commitments
Wyndham NOI Guarantee annual limit			$ 21,500,000
Wyndham NOI Guarantee over life of management agreement			100,000,000.0
NOI Guarantee Termination Payment			35,000,000.0
NOI Guarantee Key Money Loan			$ 4,600,000
Number of Hotel Properties Operated under Management Agreements | hotel					108
Number of Real Estate Properties	109		109		12	37
Term of Management NOI Guaranty | increment			10
Minimum
Other Commitments
Management Agreement Term			3 years
Base Management Fee as Percentage of Hotel Revenues			2.00%
Management Agreements which include Franchise Agreement, Base Management Fee as Percentage of Hotel Revenues			3.00%
Maximum
Other Commitments
Management Agreement Term			25 years
Base Management Fee as Percentage of Hotel Revenues			3.50%
Management Agreements which include Franchise Agreement, Base Management Fee as Percentage of Hotel Revenues			7.00%
Management Service [Member]
Other Commitments
Cost of Goods and Services Sold	$ 9,000,000.0	$ 14,700,000	$ 36,800,000	$ 45,700,000