XML 62 R15.htm IDEA: XBRL DOCUMENT v2.4.0.8
INCOME TAXES
6 Months Ended
Jun. 30, 2014
Income Tax Disclosure [Abstract]  
INCOME TAXES
Income Taxes

We calculate our interim period provision for income taxes based on our projected annual effective tax rate as adjusted for certain discrete items.

The table below shows our effective tax rates:
 
 
Three Months Ended June 30
 
Six Months Ended June 30
 
 
2014
 
2013
 
2014
 
2013
Effective tax rate
 
37.8
%
 
37.2
%
 
37.1
%
 
36.8
%


Our effective tax rate normally differs from the federal statutory tax rate of 35% due to additional provision for state income tax obligations. No other items had a significant impact on our effective tax rates during the three and six months ended June 30, 2014, and 2013.

During the three and six months ended June 30, 2014, there was not a significant change in our liability for unrecognized tax benefits.