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Other Assets - Share of Equity Income From Investments (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Schedule of Investments [Line Items] |  |  |  |  |
Share of equity (loss) income from investments |  | $ (48,088,000) | $ (51,853,000) | $ (107,959,000) | $ (62,245,000)
Dividends received | [1] | 0 | 0 | 0 | $ 1,991,000
TUI Cruises |  |  |  |  |
Schedule of Investments [Line Items] |  |  |  |  |
Dividends received |  | $ 0 | $ 0 | $ 0 |
[1] | There were no dividends received from TUI Cruises for the quarters and six months ended June 30, 2021 and June 30, 2020

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