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Income Taxes
3 Months Ended
Mar. 31, 2020
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES

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 
 March 31,
 
2020
 
2019
U.S. federal statutory income tax rate
21.0
 %
 
21.0
 %
State income taxes
3.3
 %
 
2.8
 %
Excess tax benefits from stock-based compensation plans
2.3
 %
 
-3.8
 %
Other
-0.9
 %
 
0.3
 %
Effective income tax rate
25.7
 %
 
20.3
 %


Excess tax benefits from stock-based compensation plans

During the first quarter of each year, we receive a tax benefit upon the vesting of restricted stock and the conversion of restricted stock units to common stock based on the fair value of the shares. The amount by which this tax benefit exceeds the grant-date fair value that was recognized as stock-based compensation expense is referred to as an excess tax benefit. Excess tax benefits are recognized in provision (benefit) for income taxes and reduce (increase) our effective income tax rate. The impact of excess tax benefits on the effective income tax rate decreased in magnitude from 2019 to 2020  primarily due to a decrease in the number of restricted stock units that were converted to common stock due to the timing of long-term stock award grants.