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Income Taxes
3 Months Ended
Mar. 31, 2015
Income Tax Disclosure [Abstract]  
Income Taxes
INCOME TAXES
The income tax expense rate for the three months ended March 31, 2015 and 2014 was lower than the blended statutory rate of 38.25% primarily because of the nontaxability of certain income items.
Net deferred tax assets were approximately $213 million at March 31, 2015 and $224 million at December 31, 2014. We evaluate net deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of March 31, 2015.