Summary of Significant Accounting Policies - Other (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($) item segment	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Schedule Of Significant Accounting Policies [Line Items]
Foreign currency transaction gain (loss)	$ 13,300	$ (8,700)
Accounts receivable, net	$ 282,313		$ 280,271
Number of reportable segments | segment	1
Number of cruise ships | item	32
Property and equipment, net	$ 16,463,522		16,433,292
Credit Card Processors
Schedule Of Significant Accounting Policies [Line Items]
Accounts receivable, net	$ 19,800		$ 20,100
Sales Revenue, Net | Geographic Concentration Risk
Schedule Of Significant Accounting Policies [Line Items]
Concentration risk, benchmark	No other individual country’s revenues exceed 10% in any given period.