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Income Taxes	6 Months Ended
	Jun. 30, 2012
Income Taxes [Abstract]
Income Taxes	Note 8 – Income Taxes During the three and six months ended June 30, 2012, the Company recorded approximately $4.7 million and $9.2 million, respectively, of income taxes, which resulted in estimated annual effective tax rates of approximately 40% and 39%, respectively. During the three and six months ended June 30, 2011, the Company recorded approximately $1.5 million and $2.0 million, respectively, of income taxes, which resulted in estimated annual effective tax rates of approximately 40% and 39%, respectively. The Company’s estimated annual effective tax rate differs from the statutory federal income tax rate due to state income taxes, stock-based compensation and other nondeductible items.

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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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