Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 3,522,982	$ 2,184,242	$ 6,408,128	$ 3,243,473
Contract liability	2,800,000		2,800,000		$ 1,800,000
Future cruise credits	400,000		400,000
Contract asset	165,500		165,500		167,900
Commission, transportation and other
Capitalized Contract Cost [Line Items]
Prepaid travel agent commissions	291,300		291,300		$ 177,500
Port Costs
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 226,100	$ 159,200	$ 429,500	$ 236,100
Minimum
Capitalized Contract Cost [Line Items]
Length of cruise			2 days
Maximum
Capitalized Contract Cost [Line Items]
Length of cruise			23 days