Organization (Schedule of Distribution of Consolidated Hotels) (Details) - Consolidated Properties [Member]	Jun. 30, 2017 Rooms Hotels
Embassy Suites by Hilton®
Real Estate Properties [Line Items]
Number of hotels | Hotels	18
Number of rooms (in rooms) | Rooms	4,982
Wyndham® and Wyndham Grand®
Real Estate Properties [Line Items]
Number of hotels | Hotels	8
Number of rooms (in rooms) | Rooms	2,528
Marriott® and Renaissance®
Real Estate Properties [Line Items]
Number of hotels | Hotels	2
Number of rooms (in rooms) | Rooms	761
Holiday Inn®
Real Estate Properties [Line Items]
Number of hotels | Hotels	1
Number of rooms (in rooms) | Rooms	585
DoubleTree by Hilton® and Hilton®
Real Estate Properties [Line Items]
Number of hotels | Hotels	3
Number of rooms (in rooms) | Rooms	802
Sheraton®
Real Estate Properties [Line Items]
Number of hotels | Hotels	2
Number of rooms (in rooms) | Rooms	673
Fairmont®
Real Estate Properties [Line Items]
Number of hotels | Hotels	1
Number of rooms (in rooms) | Rooms	383
The Knickerbocker®
Real Estate Properties [Line Items]
Number of hotels | Hotels	1
Number of rooms (in rooms) | Rooms	330
Operated With A Lease [Member]
Real Estate Properties [Line Items]
Number of hotels | Hotels	36
Number of rooms (in rooms) | Rooms	11,044