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Income Taxes
9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Reconciliation of the U.S. Federal Statutory Rate to Effective Tax Rate
A reconciliation of the U.S. federal statutory income tax rate to our effective income tax rate is as follows:
 For the Three Months Ended 
September 30,
For the Nine Months Ended 
September 30,
 2021202020212020
U.S. federal statutory income tax rate21.0 %21.0 %21.0 %21.0 %
State income taxes3.3 %2.9 %3.1 %3.0 %
Excess tax benefits from stock-based compensation plans— %— %-0.1 %-0.8 %
Other0.4 %0.1 %0.1 %0.4 %
Effective income tax rate24.7 %24.0 %24.1 %23.6 %