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Income Taxes
3 Months Ended
Mar. 31, 2020
Income Tax Disclosure [Abstract]  
Income Taxes Income Taxes
 
Quarter ended
 
2020
 
2019
Income tax provision
$
12


$
37

Effective tax rate
12.5
%
 
12.3
%


Our effective tax rate is lower than the U.S. federal statutory tax rate of 21% primarily due to the favorable impact of excess tax benefits associated with share based compensation.