Acquisitions and Dispositions - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended	1 Months Ended
	Dec. 31, 2011 Brand	Sep. 30, 2012	Jan. 19, 2012 8.5% Senior Notes Due 2016	Dec. 31, 2011 8.5% Senior Notes Due 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Acquired business revenue percentage of total revenue		2.00%
Acquired business operating income percentage of total operating income		1.00%
Other travel media brands from spin-off	18
Senior notes, interest rate				8.50%
Senior notes, maturity date				2016
Senior unsecured notes principal amount				$ 400,000,000
Percentage of redemption price				100.00%
Redemption of senior notes and accrued interest on senior notes			450,000,000	451,000,000
Loss from early extinguishment of debt, pre-tax			38,000,000
Loss from early extinguishment of debt, net of tax			24,000,000
Redemption premium of senior note			33,000,000
Write-off of unamortized debt issuance and discount costs			5,000,000
Current assets of discontinued operations	456,426,000	15,873,000
Tax benefit related to loss on the extinguishment of debt		16,000,000
Current liabilities of discontinued operations	$ 419,800,000