Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES

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INCOME TAXES
6 Months Ended
Jun. 30, 2013
Income Tax Disclosure [Abstract]  
INCOME TAXES
6. 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 ending prior to December 31, 2007, 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 $7.6 million.
 
Effective Tax Rate. Our effective income tax rate was 35.9% for the three months ended June 30, 2013, up from 34.9% for the same period in 2012 due primarily to increased state income taxes and other permanent items. The effective income tax rate was relatively flat for the six months ended June 30, 2013 as compared to the prior year period.