Investment in Unconsolidated Entities - Narrative (Details)	Mar. 31, 2018 property	Dec. 31, 2017 hotel
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%
Number of properties owned	34
Unconsolidated Properties
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage	50.00%	50.00%
Number of properties owned	2	2