Number of Hotels with Rooms, Primarily Consisting of Luxury and Upper Upscale, by Location (Detail)	Sep. 30, 2013 Hotel
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	118
United States
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	103
Australia
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Brazil
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Canada
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
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
Corporate Joint Venture | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	20
Corporate Joint Venture | Belgium | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
Corporate Joint Venture | France | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	5
Corporate Joint Venture | Germany | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Corporate Joint Venture | Italy | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	3
Corporate Joint Venture | Poland | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Corporate Joint Venture | Spain | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Corporate Joint Venture | Sweden | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	1
Corporate Joint Venture | The Netherlands | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2
Corporate Joint Venture | United Kingdom | European Joint Venture
Segment Reporting Other Significant Reconciling Item [Line Items]
Hotels	2