Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Details)

v3.20.1
Revenue Recognition (Details)
$ in Millions
3 Months Ended
Mar. 31, 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 $ 17.3 $ 15.3
Advanced ticket sales $ 200.0 $ 1,400.0
Percentage refundable on cancellation 60.00%  
Revenue recognized included in contract liability $ 900.0  
Costs to obtain contract $ 92.0  
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%