Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total revenues		$ 50,914	$ 175,605	$ 92,928	$ 2,208,355
Cruise Itinerary
Disaggregation of Revenue [Line Items]
Total revenues		36,614	137,195	67,309	2,001,749
Cruise Itinerary | North America
Disaggregation of Revenue [Line Items]
Total revenues	[1]	11,632	25,574	11,632	1,350,147
Cruise Itinerary | Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenues	[2]	19,317	38,539	49,202	400,937
Cruise Itinerary | Europe
Disaggregation of Revenue [Line Items]
Total revenues	[3]	3,765	0	3,765	19,135
Cruise Itinerary | Other regions
Disaggregation of Revenue [Line Items]
Total revenues	[4]	1,900	73,082	2,710	231,530
Other Revenues
Disaggregation of Revenue [Line Items]
Total revenues	[5]	$ 14,300	$ 38,410	$ 25,619	$ 206,606
Passenger Ticket | Other regions
Disaggregation of Revenue [Line Items]
Percentage of revenues by country	[6]	2.00%	10.00%	1.00%	30.00%
Passenger Ticket | Singapore
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		54.00%	0.00%	61.00%	0.00%
Passenger Ticket | United States
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		44.00%	61.00%	23.00%	67.00%
Passenger Ticket | United Kingdom
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		0.00%	18.00%
Passenger Ticket | China
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		0.00%	11.00%	15.00%	3.00%

[1] Includes the United States, Canada, Mexico and the Caribbean.

[2] Includes Southeast Asia (e.g., Singapore, Thailand and the Philippines), East Asia (e.g., China and Japan), South Asia (e.g., India and Pakistan) and Oceania (e.g., Australia and Fiji Islands) regions.

[3] Includes European countries (e.g., Nordics, Germany, France, Italy, Spain and the United Kingdom).

[4] Includes seasonality impacted itineraries primarily in South and Latin American countries.

[5] Includes revenues primarily related to cancellation fees, vacation protection insurance, pre- and post-cruise tours and fees for operating certain port facilities. Amounts also include revenues related to our bareboat charter, which was terminated when Pullmantur Holdings filed for reorganization in Spain in 2020, and procurement and management related services we perform on behalf of our unconsolidated affiliates and third parties. Refer to Note 6. Other Assets for more information on our unconsolidated affiliates.

[6] No other individual country's revenue exceeded 10% for the quarters and six months ended June 30, 2021 and 2020.