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Fair Value Measurements and Derivative Instruments (Non-Derivative Instruments) (Details) - Foreign currency debt
$ in Thousands, € in Millions
12 Months Ended
Dec. 31, 2021
EUR (€)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
EUR (€)
Dec. 31, 2020
USD ($)
Net investment hedge        
Carrying Value of Non-derivative instrument Designated as hedging instrument   $ 110,313   $ 263,031
Pullmantur and TUI Cruises        
Net investment hedge        
Carrying Value of Non-derivative instrument Designated as hedging instrument € 97.0 $ 110,300 € 215.0 $ 263,000