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Income Tax - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2018
Dec. 31, 2019
Income Tax Examination [Line Items]      
Tax Cuts and Jobs Act, change in tax rate, income tax expense (benefit)   $ 5.2  
Tax cuts and jobs act, measurement period adjustment, income tax benefit $ 5.0    
Income tax benefit adjustment, CARES Act 8.7    
Income tax benefit, net operating loss carry forward, CARES Act 11.8    
Domestic Tax Authority      
Income Tax Examination [Line Items]      
Operating loss carryforwards 363.0   $ 285.3
State and Local Jurisdiction      
Income Tax Examination [Line Items]      
Operating loss carryforwards $ 223.2   $ 202.4