Management Agreements and Leases - Carlson Agreement (Details) $ in Thousands	1 Months Ended	12 Months Ended					24 Months Ended
	Jun. 30, 2017 hotel	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) hotel property	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2019 USD ($)	May 31, 2017 hotel
Property Subject to or Available for Operating Lease [Line Items]
Number of properties owned | property				522
Capital improvements from leased facilities, funded				$ 131,120	$ 187,652	$ 180,703
Hotels
Property Subject to or Available for Operating Lease [Line Items]
Number of properties owned | hotel				323
Carlson | Hotels
Property Subject to or Available for Operating Lease [Line Items]
Operating agreement annual rent and return				$ 12,920
Realized returns and rents				12,920	$ 12,920	$ 12,920
Guarantee provided to the entity, maximum				40,000
Increase in guarantee				4,535
Guarantee provided to the entity, remaining amount				$ 33,364
Number of properties owned | hotel				8				11
Carlson | Hotels | Chandler, AZ, Bloomington, MN, and Naperville, IL
Property Subject to or Available for Operating Lease [Line Items]
Number of properties agreed to sell | hotel	3			3
Owner deposits In FF&E reserve				$ 23,438
Percentage increase in minimum returns after funding for capital improvements				8.00%
Forecast | Carlson | Hotels | Chandler, AZ, Bloomington, MN, and Naperville, IL
Property Subject to or Available for Operating Lease [Line Items]
Capital improvements from leased facilities, funded		$ 28,600	$ 6,400
Maximum | Forecast | Carlson | Hotels | Chandler, AZ, Bloomington, MN, and Naperville, IL
Property Subject to or Available for Operating Lease [Line Items]
Capital improvements from leased facilities, funded							$ 35,000