Revenues - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 1,059,231	$ 42,014
Contract liability	1,200,000		$ 800,000
Customer refunds	35,200		38,800
Future cruise credits	600,000
Contract asset	95,400		52,900
Commission, transportation and other
Capitalized Contract Cost [Line Items]
Prepaid travel agent commissions	$ 94,700		$ 75,400
Minimum
Capitalized Contract Cost [Line Items]
Length of cruise	2 days
Maximum
Capitalized Contract Cost [Line Items]
Length of cruise	25 days
Port Costs
Capitalized Contract Cost [Line Items]
Passenger ticket revenues	$ 76,900	$ 1,500