Commitments and Contingencies - Pension Trust Litigation (Details) $ in Millions	1 Months Ended
	Mar. 31, 2016 USD ($)	Jun. 30, 2018 USD ($) property	Mar. 24, 2016 hotel
Loss Contingencies [Line Items]
Number of Real Estate Properties | property		34
Loss contingency accrual | $		$ 4.8
Predecessor
Loss Contingencies [Line Items]
Withdrawal liability | $	$ 8.3
Predecessor | InterContinental Hotels Group PLC
Loss Contingencies [Line Items]
Number of Real Estate Properties			3
Predecessor | InterContinental Hotels Group PLC | Disposed of by sale
Loss Contingencies [Line Items]
Number of Real Estate Properties			2
Predecessor | Wyndham Hotel Group
Loss Contingencies [Line Items]
Number of Real Estate Properties			1