Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

v3.20.2
Revenue Recognition (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
segment
Dec. 31, 2019
USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Number of reportable segments | segment   1  
Receivables from customers included in accounts receivable, net $ 4.5 $ 4.5 $ 15.3
Advanced ticket sales $ 66.1 $ 66.1 $ 1,400.0
Percentage refundable on cancellation 40.00% 40.00%  
Revenue recognized included in contract liability   $ 900.0  
Costs to obtain contract $ 38.6 $ 130.6  
Revenue      
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Concentration risk, benchmark   No other individual country’s revenues exceed 10% in any given period.  
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   80.00%