Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jun. 30, 2020		Jun. 30, 2019		Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues		$ 175,605		$ 2,806,631		$ 2,208,355	$ 5,246,398
Cruise Itinerary
Disaggregation of Revenue [Line Items]
Total revenues		137,195		2,690,762		2,001,749	5,032,382
Cruise Itinerary | North America
Disaggregation of Revenue [Line Items]
Total revenues	[1]	25,574		1,571,769		1,350,147	3,252,827
Cruise Itinerary | Asia Pacific
Disaggregation of Revenue [Line Items]
Total revenues	[2]	38,539		327,777		400,937	817,852
Cruise Itinerary | Europe
Disaggregation of Revenue [Line Items]
Total revenues	[3]	0		594,712		19,135	602,694
Cruise Itinerary | Other regions
Disaggregation of Revenue [Line Items]
Total revenues	[4]	73,082		196,504		231,530	359,009
Other Revenues
Disaggregation of Revenue [Line Items]
Total revenues	[5]	$ 38,410		$ 115,869		$ 206,606	$ 214,016
Passenger Ticket | Other regions
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		10.00%	[6]	19.00%	[6]	33.00%	34.00%
Passenger Ticket | United States
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		61.00%		67.00%		67.00%	66.00%
Passenger Ticket | United Kingdom
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		18.00%		9.00%
Passenger Ticket | China
Disaggregation of Revenue [Line Items]
Percentage of revenues by country		11.00%		5.00%

[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, procurement and management related services we perform on behalf of our unconsolidated affiliates. 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, 2020 and 2019.