Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Note 12 – Income Taxes The income tax provision for the three and six months ended June 30, 2016 was $15.4 million and $29.0 million, respectively, which represents an effective tax rate of 37.9% for both periods. The income tax provision for the three and six months ended June 30, 2015 was $11.1 million and $21.5 million, respectively, which represents an effective tax rate of 38.4% and 37.7%, respectively. At June 30, 2016 and December 31, 2015, United maintained a valuation allowance on its net deferred tax asset of $4.57 million and $4.28 million, respectively. Management assesses the valuation allowance recorded against its net deferred tax asset at each reporting period. The determination of whether a valuation allowance for its net deferred tax asset is appropriate is subject to considerable judgment and requires an evaluation of all the positive and negative evidence. United evaluated the need for a valuation allowance at June 30, 2016. Based on the assessment of all the positive and negative evidence, management concluded that it is more likely than not that nearly all of its net deferred tax asset will be realized based upon future taxable income. The remaining valuation allowance of $4.57 million is related to specific state income tax credits that have short carryforward periods and are expected to expire unused. The valuation allowance could fluctuate in future periods based on the assessment of the positive and negative evidence. Management's conclusion at June 30, 2016 that it was more likely than not that United’s net deferred tax asset of $158 million will be realized is based upon management’s estimate of future taxable income. Management’s estimate of future taxable income is based on internal forecasts that consider historical performance, various internal estimates and assumptions, as well as certain external data all of which management believes to be reasonable although inherently subject to significant judgment. If actual results differ significantly from the current estimates of future taxable income, even if caused by adverse macro-economic conditions, the valuation allowance may need to be increased for some or all of its net deferred tax asset. Such an increase to the net deferred tax asset valuation allowance could have a material adverse effect on United’s financial condition and results of operations. United is subject to income taxation in the United States and various state jurisdictions. United’s federal and state income tax returns are filed on a consolidated basis. Currently, no years for which United filed a federal income tax return are under examination by the IRS, and there are no state tax examinations currently in progress. United is no longer subject to income tax examinations from state and local income tax authorities for years before 2012. Although United is unable to determine the ultimate outcome of future examinations, United believes that the liability recorded for uncertain tax positions is appropriate. At June 30, 2016 and December 31, 2015, unrecognized income tax benefits totaled $4.18 million and $3.98 million, respectively.

Note 12 – Income Taxes

The income tax provision for the three and six months ended June 30, 2016 was $15.4 million and $29.0 million, respectively, which represents an effective tax rate of 37.9% for both periods. The income tax provision for the three and six months ended June 30, 2015 was $11.1 million and $21.5 million, respectively, which represents an effective tax rate of 38.4% and 37.7%, respectively. At June 30, 2016 and December 31, 2015, United maintained a valuation allowance on its net deferred tax asset of $4.57 million and $4.28 million, respectively. Management assesses the valuation allowance recorded against its net deferred tax asset at each reporting period. The determination of whether a valuation allowance for its net deferred tax asset is appropriate is subject to considerable judgment and requires an evaluation of all the positive and negative evidence.

United evaluated the need for a valuation allowance at June 30, 2016. Based on the assessment of all the positive and negative evidence, management concluded that it is more likely than not that nearly all of its net deferred tax asset will be realized based upon future taxable income. The remaining valuation allowance of $4.57 million is related to specific state income tax credits that have short carryforward periods and are expected to expire unused.

The valuation allowance could fluctuate in future periods based on the assessment of the positive and negative evidence. Management's conclusion at June 30, 2016 that it was more likely than not that United’s net deferred tax asset of $158 million will be realized is based upon management’s estimate of future taxable income. Management’s estimate of future taxable income is based on internal forecasts that consider historical performance, various internal estimates and assumptions, as well as certain external data all of which management believes to be reasonable although inherently subject to significant judgment. If actual results differ significantly from the current estimates of future taxable income, even if caused by adverse macro-economic conditions, the valuation allowance may need to be increased for some or all of its net deferred tax asset. Such an increase to the net deferred tax asset valuation allowance could have a material adverse effect on United’s financial condition and results of operations.

United is subject to income taxation in the United States and various state jurisdictions. United’s federal and state income tax returns are filed on a consolidated basis. Currently, no years for which United filed a federal income tax return are under examination by the IRS, and there are no state tax examinations currently in progress. United is no longer subject to income tax examinations from state and local income tax authorities for years before 2012. Although United is unable to determine the ultimate outcome of future examinations, United believes that the liability recorded for uncertain tax positions is appropriate.

At June 30, 2016 and December 31, 2015, unrecognized income tax benefits totaled $4.18 million and $3.98 million, respectively.