Consolidated Portfolio of Hotels by Location (Detail)	Jun. 30, 2015 Hotel
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	111
European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	18
United States
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	95
Australia
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Brazil
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
Canada
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Chile
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Mexico
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
New Zealand
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	7
Belgium | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
France | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	4
Germany | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Italy | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
Poland | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Spain | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Sweden | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
The Netherlands | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
United Kingdom | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1