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Revenue Recognition - Textuals (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2019
Accounts Receivable [Member]        
Disaggregation of Revenue [Line Items]        
Accounts Receivable, Allowance for Credit Loss $ 0.0      
Accounts Receivable, Credit Loss Expense (Reversal) 0.0      
Miscellaneous Receivables [Member]        
Disaggregation of Revenue [Line Items]        
Accounts Receivable, Allowance for Credit Loss $ 0.0     $ 0.0
Scenario, Forecast | One year or longer        
Disaggregation of Revenue [Line Items]        
Deferred Revenue     $ 4,000.0  
Deferred Revenue, Percentage of Total, Expected to be Recognized in Next Twelve Months     46.00%  
Deferred Revenue, Percentage of Total, Expected to be Recognized Beyond Twelve Months   54.00%