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v3.20.4

Fair Value Measurements and Derivative Instruments (Non-Derivative Instruments) (Details) - Foreign currency debt $ in Thousands, € in Millions | 12 Months Ended
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Dec. 31, 2020 EUR (€) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 EUR (€) | Dec. 31, 2019 USD ($)
Net investment hedge |  |  |  |
Carrying Value of Non-derivative instrument Designated as hedging instrument |  | $ 263,031 |  | $ 358,078
Pullmantur and TUI Cruises |  |  |  |
Net investment hedge |  |  |  |
Carrying Value of Non-derivative instrument Designated as hedging instrument | € 215.0 | $ 263,000 | € 319.0 | $ 358,100

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