Fair Value Measurements and Derivative Instruments (Non-Derivative Instruments) (Details) - Foreign currency debt $ in Thousands, € in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2014 EUR (€)
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument	$ 0	$ 168,718
Long-term debt
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument	$ 0	168,718
Pullmantur and TUI Cruises
Net investment hedge
Carrying Value of Non-derivative instrument Designated as hedging instrument		$ 168,700	€ 139.4