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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 ($) ship	Jun. 30, 2020 EUR (€) ship	Apr. 30, 2016	Mar. 31, 2021 USD ($)	Mar. 31, 2021 EUR (€)	Jun. 30, 2020 USD ($) ship	Mar. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) berth	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2021 EUR (€) berth	Jun. 30, 2021 berth	Dec. 31, 2020 EUR (€)	Sep. 30, 2020 ship	Dec. 31, 2017
Other Assets
Approximate berths \| berth								47,260			47,260
Number of cruise ships held-for-sale \| ship														3
Impairment losses									$ 635,500
Principal and Interest payments received								$ 31,334	21,086	$ 32,870
Loss provision for receivables								43,822	81,600
Notes receivable								$ 24,300
Minimum
Other Assets
Investment in a joint venture, percentage of interest								20.00%			20.00%
Ownership interest retained, percent								20.00%			20.00%
Maximum
Other Assets
Investment in a joint venture, percentage of interest								50.00%			50.00%
Ownership interest retained, percent								50.00%			50.00%
TUI Cruises GmbH joint venture
Other Assets
Equity and loans due from equity method investee								$ 444,400	538,400
Equity investment								322,400	387,500
Loan investment								$ 117,200	145,500		€ 103.0		€ 118.9
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 \| 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
Ownership interest retained, percent								50.00%			50.00%
Pullmantur
Other Assets
Impairment losses						$ 69,000
Reorganization items								$ 10,200	21,600
Percentage of subsidiary which has been sold								51.00%			51.00%				51.00%
Loss provision for receivables								$ 12,600
Pullmantur \| Not Primary Beneficiary
Other Assets
Retained ownership percentage of subsidiary after sale								49.00%
Grand Bahamas Shipyard Ltd.
Other Assets
Equity method investment impairment							$ 30,100
Grand Bahamas Shipyard Ltd. \| Not Primary Beneficiary
Other Assets
Investment in a joint venture, percentage of interest								40.00%			40.00%
Ownership interest retained, percent								40.00%			40.00%
Payments to related parties for services provided								$ 9,300	$ 200
Grand Bahamas Shipyard Ltd. \| Non-accrual status of advances to affiliates \| Not Primary Beneficiary
Other Assets
Interest rate on debt facility provided to related party (as a percent)								5.75%			5.75%
Principal and Interest payments received								$ 8,900
Grand Bahamas Shipyard Ltd. \| Loans Receivable \| Not Primary Beneficiary
Other Assets
Loan investment								$ 11,100
London Interbank Offered Rate (LIBOR) \| Grand Bahamas Shipyard Ltd. \| Non-accrual status of advances to affiliates \| Minimum \| Not Primary Beneficiary
Other Assets
Margin on floating rate base (as a percent)								3.50%
London Interbank Offered Rate (LIBOR) \| Grand Bahamas Shipyard Ltd. \| Non-accrual status of advances to affiliates \| Maximum \| Not Primary Beneficiary
Other Assets
Margin on floating rate base (as a percent)								3.75%
Splendor of the Seas \| TUI Cruises GmbH joint venture
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 \| Hapag-Lloyd Cruises
Other Assets
Purchase price	$ 1,300,000	€ 1,200.0
Springwater Capital LLC \| Pullmantur
Other Assets
Investment in a joint venture, percentage of interest								51.00%			51.00%
Ownership interest retained, percent								51.00%			51.00%
Luxury Liners \| TUI Cruises GmbH joint venture \| Hapag-Lloyd Cruises
Other Assets
Number of ships acquired \| ship	2	2				2
Expedition Ships \| TUI Cruises GmbH joint venture \| Hapag-Lloyd Cruises
Other Assets
Number of ships acquired \| ship	2	2				2
Hanseatic Spirit \| Hapag-Lloyd Cruises
Other Assets
Approximate berths \| berth												230