Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

v3.21.1
Revenue Recognition (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Receivables from customers included in accounts receivable, net $ 1,100,000   $ 1,000,000.0
Advanced ticket sales 29,300,000   $ 23,100,000,000
Revenue recognized included in contract liability 0 $ 900,000,000  
Costs to obtain contract $ 14,800,000 $ 92,000,000.0  
Revenue | Minimum      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Percentage of revenue attributable to U.S.- sourced passengers 75.00%    
Revenue | Maximum      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Percentage of revenue attributable to U.S.- sourced passengers 85.00%