Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

v3.21.2
Revenue Recognition (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
segment
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Number of reportable segments | segment     1    
Receivables from customers included in accounts receivable, net $ 7,800,000   $ 7,800,000   $ 1,000,000.0
Advanced ticket sales $ 234,000,000.0   $ 234,000,000.0   $ 23,100,000,000
Percentage of refundable amounts included within contract liabilities 25.00%   25.00%    
Revenue recognized included in contract liability     $ 0 $ 900,000,000  
Costs to obtain contract $ 900,000 $ 15,500,000 $ 26,900,000 $ 160,400,000  
Sales Revenue, Net | Geographic Concentration Risk          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Concentration risk, benchmark     No other individual country’s revenues exceed 10% in any given period.    
Sales Revenue, Net | Geographic Concentration Risk | Minimum          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Percentage of revenue attributable to U.S.- sourced passengers     75.00%    
Sales Revenue, Net | Geographic Concentration Risk | Maximum          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Percentage of revenue attributable to U.S.- sourced passengers     85.00%