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Income Taxes - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Income Taxes      
Valuation allowance $ 10.9 $ 10.7  
Income tax refund receivable related to CARES Act 20.5 15.4  
Increase (decrease) in income taxes refund receivable 5.1    
Additional tax benefit related to carryback the federal taxable loss 2.0    
Income taxes 0.5 $ 2.4 $ 15.3
State      
Income Taxes      
Operating loss carryforwards, amount $ 21.2    
State | Minimum      
Income Taxes      
Operating loss carryforwards, expiration year 2022    
State | Maximum      
Income Taxes      
Operating loss carryforwards, expiration year 2041