Commitments and Contingencies (Details) $ in Thousands, € in Billions			3 Months Ended
	Apr. 01, 2024 USD ($) item	Aug. 27, 2019 item	Mar. 31, 2024 USD ($) item	Mar. 31, 2023 USD ($)	Apr. 01, 2024 EUR (€) item	Mar. 31, 2024 EUR (€) item	Dec. 31, 2022 USD ($)
Commitments and Contingencies Disclosure [Line Items]
Number of cruise ships			32			32
Capacity of ship, berths			66,400			66,400
Increase in contract price | $			$ 592,238	$ 668,261
Advance ticket sales with credit card processor | $			3,400,000
Reserves maintained credit card processor | $			51,300
Number of lawsuits filed		1
Estimate of possible loss | $							$ 112,900
Credit Card Processors | Accounts Receivable [Member]
Commitments and Contingencies Disclosure [Line Items]
Reserves maintained credit card processor | $			19,800
Credit Card Processors | Other Long-Term Assets [Member]
Commitments and Contingencies Disclosure [Line Items]
Reserves maintained credit card processor | $			$ 31,500
Ships launching period in 2025 through 2028
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships			4			4
Ships to be delivered in 2025
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships			1			1
Ship Construction Contracts
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships			5			5
Aggregate contract price of new ships			$ 6,300,000			€ 5.8
Export credit facility financing as percentage of contract price			80.00%			80.00%
Ship Construction Contracts | Subsequent Event
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships	6				6
Number of additional cruise ships, expected to be cancelled	2				2
Number of additional cruise ships, not yet effective	4				4
Aggregate contract price of new ships	$ 5,700,000				€ 5.3
Ship Construction Contracts | Subsequent Event | Maximum
Commitments and Contingencies Disclosure [Line Items]
Other commitments, cancellation penalty | $	$ 51,000
Ship Construction Contracts | Ships launching period in 2025 through 2028
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships			4			4
Ship Construction Contracts | Ships launching period in 2025 through 2028 | Minimum
Commitments and Contingencies Disclosure [Line Items]
Capacity of ship, tons			156,000			156,000
Capacity of ship, berths			3,550			3,550
Ship Construction Contracts | Ships launching period in 2025 through 2028 | Maximum
Commitments and Contingencies Disclosure [Line Items]
Capacity of ship, tons			169,000			169,000
Capacity of ship, berths			3,850			3,850
Ship Construction Contracts | Ships to be delivered in 2025
Commitments and Contingencies Disclosure [Line Items]
Number of additional ships			1			1
Capacity of ship, tons			68,000			68,000
Capacity of ship, berths			1,250			1,250