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Income Taxes
6 Months Ended
Jun. 30, 2014
INCOME TAXES [Abstract]  
INCOME TAXES
INCOME TAXES
The Company's effective income tax rates were 29.8% and 32.3% for the three months ended June 30, 2014 and 2013, respectively, and 28.4% and 28.1% for the six months ended June 30, 2014 and 2013, respectively. The Company's effective income tax rates for the three and six months ended June 30, 2014 and 2013 were lower than the applicable statutory income tax rate of 35% primarily because of the Company's U.S. income tax positions. The Company does not have a history of significant taxable income in the U.S.; therefore, the Company has recorded a valuation allowance against its U.S. federal tax net operating loss carryforwards. Accordingly, in instances when the Company's U.S. legal entities generate pre-tax U.S. GAAP income, no income tax expense is recognized to the extent there are net operating loss carryforwards to offset pre-tax U.S. GAAP income.