Commitments and Contingencies (Management Agreements) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2020 USD ($) hotel property	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) hotel property	Jun. 30, 2019 USD ($)	Sep. 30, 2016 hotel
Other Commitments
Number of Hotel Properties Operated under Management Agreements | hotel	103		103
Number of Real Estate Properties	104		104		29
Minimum
Other Commitments
Management Agreement Term			1 year
Base Management Fee as Percentage of Hotel Revenues			1.75%
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 | $	$ 600,000	$ 13,700,000	$ 8,500,000	$ 27,800,000