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Income Taxes
6 Months Ended
Jun. 30, 2012
Income Taxes [Abstract]  
Income Taxes

Note 11 — Income Taxes

The Company’s corporate organizational structure requires the filing of two separate consolidated U.S. Federal income tax returns. As a result, taxable income included on one return cannot be offset by tax attributes, including net operating losses, included on the other return.

The effective income tax rates for the three months ended June 30, 2012 and 2011 were 29.2% and 38.3%, respectively, while the June 30, 2012 and 2011 year-to-date effective income tax rates were 29.6% and 19.1%, respectively. Fluctuations in effective tax rates are historically impacted by non-cash changes in the fair value of the Company’s warrant liability, a permanent tax difference with no associated income tax impact, and by existing deferred tax asset valuation allowances. Future changes in estimates of taxable income could result in a significant change in the valuation allowance.

As of June 30, 2012, one group had a net deferred tax asset of approximately $18.1 million. The Company continues to maintain a full valuation allowance for this net deferred tax asset.