Organization - Additional Information (Detail)	Sep. 07, 2012 Hotel Room
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	120
Number of rooms	64,648
European Joint Venture
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	14
Number of rooms	4,380
European Joint Venture | Fund I
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	11
Number of rooms	3,512
Ownership Interests	32.10%
European Joint Venture | Fund II
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	3
Number of rooms	868
Ownership Interests	33.40%
Asian Joint Venture
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Ownership Interests	25.00%
Asian Joint Venture | INDIA
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	7
Number of rooms	1,750
Asian Joint Venture | INDIA | Bangalore
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	2
Asian Joint Venture | INDIA | Other Areas
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of hotels	5
Asian Joint Venture | Citigate Perth
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Number of rooms	278
HOST HOTELS & RESORTS, INC.
Organization, Consolidation and Presentation of Financial Statements Disclosure [Line Items]
Percentage of the common OP Units	98.60%