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Income Taxes (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Income Tax Contingency [Line Items]          
Effective tax rate 25.30% 25.00% 25.50% 26.00%  
Deferred Tax Assets, Valuation Allowance $ 0.0   $ 0.0    
Decrease in Unrecognized Tax Benefits is Reasonably Possible 0.7   0.7    
Accrued interest and penalties $ 0.4   $ 0.4   $ 0.3
Year subject to examination     2015    
State and Local Jurisdiction [Member] | Minimum [Member]          
Income Tax Contingency [Line Items]          
Year under income tax examination     2013    
State and Local Jurisdiction [Member] | Maximum [Member]          
Income Tax Contingency [Line Items]          
Year under income tax examination     2019