Fair Value Measurements and Derivative Instruments (Details 7) (Foreign currency debt, Pullmantur and TUI Cruises) In Thousands, unless otherwise specified	Sep. 30, 2013 USD ($)	Sep. 30, 2013 EUR (€)	Dec. 31, 2012 USD ($)	Dec. 31, 2012 EUR (€)	Sep. 30, 2013 Current portion of long-term debt USD ($)	Dec. 31, 2012 Current portion of long-term debt USD ($)	Sep. 30, 2013 Long-term debt USD ($)	Dec. 31, 2012 Long-term debt USD ($)
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument	$ 661,010	€ 488,300	$ 635,109	€ 481,700	$ 526,123	$ 17,516	$ 134,887	$ 617,593