Organization and Basis of Presentation - Summary of Number of Owned and Joint Venture Hotels and Number of Rooms at Such Hotels (Detail)	Mar. 31, 2019 Hotel Room	Dec. 31, 2018 Hotel Room
Real Estate Properties [Line Items]
Number of hotels | Hotel	313	315
Number of rooms | Room	40,100	40,400
Owned [Member]
Real Estate Properties [Line Items]
Number of hotels | Hotel	312	314
Number of rooms | Room	39,900	40,200
Joint Venture [Member]
Real Estate Properties [Line Items]
Number of hotels | Hotel	1	1
Number of rooms | Room	200	200