Hotel Operating Revenue, Departmental Expenses and Other Property-Related Costs Wyndham Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Hotel Operating Revenue, Departmental Expenses, and Other Property-Related Costs [Line Items]
Management Company NOI Guaranty, Amount Recorded	$ 1.4	$ 1.5	$ 2.4	$ 1.5