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Summary of Significant Accounting Policies - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Deferred revenue contract liability $ 56.8   $ 56.8   $ 71.8
Performance obligation timing     We expect to recognize substantially all of these amounts in revenues within approximately 12 months.    
Deferred revenue recognized     $ 27.5    
Maximum          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Derivative term of contract     1 year    
Sales Revenue          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Consolidated revenues, net (percent) 100.00% 100.00% 100.00% 100.00%  
Contracts with customers | Sales Revenue          
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]          
Consolidated revenues, net (percent) 80.00%   80.00%