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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Other Assets (Narrative) (Details) $ in Thousands, € in Millions			1 Months Ended	3 Months Ended			12 Months Ended
	Jun. 30, 2020 USD ($) ship	Jun. 30, 2020 EUR (€) ship	Apr. 30, 2016	Mar. 31, 2022 USD ($)	Mar. 31, 2022 EUR (€)	Jun. 30, 2020 USD ($) ship	Dec. 31, 2022 USD ($) berth	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2022 EUR (€) berth	Dec. 31, 2021 EUR (€)	Jun. 30, 2021 berth	Sep. 30, 2020 ship
Other Assets
Approximate berths \| berth							38,310			38,310
Number of cruise ships held-for-sale \| ship													3
Impairment losses									$ 635,500
Credit loss (recovery), net							$ (9,658)	$ 43,822
Property, Plant and Equipment
Other Assets
Credit loss (recovery), net							$ 81,600	81,600
TUI Cruises GmbH joint venture
Other Assets
Investment in a joint venture, percentage of interest							50.00%			50.00%
Equity and loans due from equity method investee							$ 466,000	444,400
Equity investment							361,500	322,400
Loan investment							$ 93,000	117,200		€ 87.2	€ 103.0
TUI Cruises GmbH joint venture \| TUI cruise ships
Other Assets
Reduction of current ownership interest, minimum allowed (as a percent)							37.55%			37.55%
TUI Cruises GmbH joint venture \| Splendor of the Seas
Other Assets
Interest rate on debt facility provided to related party (as a percent)			6.25%
Debt instrument, term			10 years
Related party guarantor obligation percentage			50.00%
TUI Cruises GmbH joint venture \| Not Primary Beneficiary
Other Assets
Investment in a joint venture, percentage of interest							50.00%			50.00%
Equity contribution	$ 84,200	€ 75.0		$ 69,900	€ 59.5
Pullmantur
Other Assets
Impairment losses						$ 69,000
Reorganization items								$ 10,200	$ 21,600
Pullmantur \| Not Primary Beneficiary
Other Assets
Retained ownership percentage of subsidiary after sale							49.00%
Grand Bahamas Shipyard Ltd. \| Not Primary Beneficiary
Other Assets
Investment in a joint venture, percentage of interest							40.00%			40.00%
TUI Cruises GmbH joint venture \| Hapag-Lloyd Cruises
Other Assets
Purchase price	$ 1,300,000	€ 1,200.0
TUI Cruises GmbH joint venture \| Hapag-Lloyd Cruises \| Luxury Liners
Other Assets
Number of ships acquired \| ship	2	2				2
TUI Cruises GmbH joint venture \| Hapag-Lloyd Cruises \| Expedition Ships
Other Assets
Number of ships acquired \| ship	2	2				2
Hapag-Lloyd Cruises \| Hanseatic Spirit
Other Assets
Approximate berths \| berth												230
Springwater Capital LLC \| Pullmantur
Other Assets
Investment in a joint venture, percentage of interest							51.00%			51.00%