Fair Value of Financial Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Jun. 15, 2012		Dec. 31, 2011
Fair Value Measurements on a Recurring Basis | Interest rate swap derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	$ 9.7	[1]	$ 10.9	[1]
Derivative Liabilities	(6.4)	[1]	(4.2)	[1]
Fair Value Measurements on a Recurring Basis | Forward currency sale contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	13.5	[1]	10.8	[1]
Fair Value, Measurements, Nonrecurring | Impaired Hotel Properties Held And Used
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment			5	[2]
Significant Other Observable Inputs (Level 2) | Fair Value Measurements on a Recurring Basis | Interest rate swap derivatives
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	9.7	[1]	10.9	[1]
Derivative Liabilities	(6.4)	[1]	(4.2)	[1]
Significant Other Observable Inputs (Level 2) | Fair Value Measurements on a Recurring Basis | Forward currency sale contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative assets	13.5	[1]	10.8	[1]
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring | Impaired Hotel Properties Held And Used
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment			5	[2]
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Nonrecurring | Impaired Hotel Properties Sold
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Property and equipment			$ 6	[2]

[1] These derivative contracts have been designated as hedging instruments.

[2] The fair value measurements are as of the measurement date of the impairment and may not reflect the book value as of December 31, 2011.