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Other Assets - Share of Equity Income From Investments (Details) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Schedule of Investments [Line Items] |  |  |
Share of equity (loss) income from investments |  | $ (59,871,000) | $ (10,392,000)
Dividends received | [1] | 0 | 1,991,000
TUI Cruises |  |  |
Schedule of Investments [Line Items] |  |  |
Dividends received |  | $ 0 | $ 0
[1] | There were no dividends received from TUI Cruises for the quarters ended March 31, 2021 and March 31, 2020

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