Income Taxes

6 Months Ended

Jun. 30, 2012

Income Taxes [Abstract]

Income Taxes

5. Income Taxes

Ordinarily, interim tax provisions are calculated using the estimated effective tax rate (“ETR”) expected to be applicable for the full fiscal year. However, when a reliable estimate of the annual ETR cannot be made, the actual ETR for the year-to-date period may be the best estimate of the annual ETR. For the three and six months ended June 30, 2012 we used the actual year-to-date ETR in computing our tax provision as a reliable estimate of the annual ETR cannot be made as relatively small changes in our projected income or loss produce a significant variance in our ETR. The ETR for the three and six months ended June 25, 2011, was 15.1%. The tax provision and benefit in 2012 and 2011 differ from the U.S. federal statutory rate primarily due to the inability to benefit our domestic losses, foreign income taxed at lower rates, changes in our deferred tax asset valuation allowance, state taxes and changes and interest related to unrecognized tax benefits.

There was no material change to our unrecognized tax benefits and interest accrued related to unrecognized tax benefits during the three and six months ended June 30, 2012.