Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES

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INCOME TAXES
6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]  
INCOME TAXES
INCOME TAXES
 
We are subject to U.S. federal, state and international income taxes. We are generally no longer subject to federal, state, or international income tax examinations by tax authorities for years before 2011 with few exceptions. Due to the potential for resolution of state and foreign examinations, and the expiration of various statutes of limitations, it is reasonably possible that our gross unrecognized tax benefit balance may change within the next twelve months by a range of $0 to $9.1 million.
 
Effective Tax Rate.  Our effective income tax rate was 34.0% and 29.0% for the three months ended June 30, 2016 and June 30, 2015, respectively. Our effective income tax rate was 33.8% and 31.7% for the six months ended June 30, 2016 and June 30, 2015, respectively. The 2015 income tax rate was favorably impacted by the enactment of state income tax legislation in the second quarter of 2015.