Income Taxes (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Pullmantur	Dec. 31, 2012 Pullmantur Valuation Allowance of Deferred Tax Assets	Dec. 31, 2012 Pullmantur Valuation Allowance of Deferred Tax Liability
Income Taxes
Valuation allowance of deferred tax assets (as a percent)				100.00%
Income tax expense	$ (55,500,000)	$ (20,700,000)	$ (20,300,000)
Net deferred tax expense related to the Pullmantur impairment	28,488,000			28,500,000
Deferred Tax Liabilities, Intangible Assets				61,500,000
Income tax expense charge				33,700,000	33,700,000
Reduction in income tax expense due to impairment charge related to trademarks and trade names				$ 5,200,000		$ 5,200,000