Annual report pursuant to Section 13 and 15(d)

Revenue and Expense from Contracts with Customers (Details)

v3.20.4
Revenue and Expense from Contracts with Customers (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]      
Receivables from customers included in accounts receivables, net $ 1.0 $ 15.3  
Advanced ticket sales 23.1 1,400.0  
Revenue recognized included in contract liability 900.0 1,200.0 $ 1,000.0
Contract costs incurred to obtain customers 41.3 143.5  
Contract costs to fulfill contracts with customers 5.5 $ 49.7  
Costs to obtain contract $ 171.5