Contingency (Details)	1 Months Ended	6 Months Ended	19 Months Ended
	Apr. 30, 2016 USD ($) Hotels	Jun. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value | $	$ 8,300,000
Loss Contingency Accrual, Payments | $		$ 570,000	$ 1,700,000
Loss Contingency Accrual | $				$ 2,300,000
InterContinental Hotels Group [Member]
Loss Contingencies [Line Items]
Number of hotels | Hotels	3
InterContinental Hotels Group [Member] | Disposal Group, Disposed of by Sale
Loss Contingencies [Line Items]
Number of hotels | Hotels	2
Wyndham Hotel Group [Member]
Loss Contingencies [Line Items]
Number of hotels | Hotels	1