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Employee Benefit Plans (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Retirement Benefits [Abstract]        
Employer contributions to defined benefit pension $ 0.3 $ 0.3 $ 0.6 $ 0.7
Employer contribution (percent)     4.00%  
Employer contributions $ 0.1 $ 0.1 $ 0.1 $ 0.1