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Income taxes	6 Months Ended
Income taxes	Jun. 30, 2013
Income Tax Disclosure [Abstract]
Income taxes	Income taxes In connection with the income tax examination for the 2007 through 2009 tax years, the Company recorded income tax expense of $2.2 million for unrecognized tax positions in the first quarter of 2012. In addition, the Company had a reduction of deferred income tax expense of $2.5 million in the first quarter of 2012, due to a deferred income tax rate reduction related to state income tax apportionment. It is likely that substantially all of the unrecognized tax benefits of $14.9 million, as well as interest, at June 30, 2013, will be settled in the next 12 months due to the anticipated settlement of federal and state audits.

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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