Income Taxes	3 Months Ended
Apr. 03, 2015
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The (benefit from) provision for income taxes for 2015 and 2014 is computed at the effective rate expected to be applicable in each respective full year using the statutory rates on a country by country basis applied to current year-to-date pre-tax earnings, adjusted for changes in valuation allowances relating to the Company’s realizability of deferred tax assets and changes in tax uncertainties. The Company's interim income tax rate may differ from its estimated annual effective tax rate because accounting standards require the Company to exclude certain entities expected to generate a pretax loss from the overall computation of the estimated annual effective tax rate, as well as items accounted for in the interim period incurred, which may result in a significant variation in the customary relationship between (benefit from) provision for income taxes and pretax accounting income (loss) in interim reporting periods. The effective rates for the three month periods ended April 3, 2015 and March 28, 2014 were a benefit of 3.9% and a provision of 3.7%, respectively. The effective rate for the three months ended April 3, 2015 differed from the U.S. statutory rate primarily due to state income taxes, lower tax rates of our foreign operations compared to the U.S. federal rates, geographical mix of earnings, changes in estimated uncertain tax positions, and recognition of valuation allowances related to losses in the UK and in U.S. federal and state jurisdictions. The effective rate for the three months ended March 28, 2014 differed from the U.S. statutory rate primarily due to state income taxes, lower tax rates of our foreign operations compared to the U.S. federal rates, geographical mix of earnings, and recognition of valuation allowances related to losses in the UK and in U.S. federal and state jurisdictions.

Income Taxes

3 Months Ended

Apr. 03, 2015

The (benefit from) provision for income taxes for 2015 and 2014 is computed at the effective rate expected to be applicable in each respective full year using the statutory rates on a country by country basis applied to current year-to-date pre-tax earnings, adjusted for changes in valuation allowances relating to the Company’s realizability of deferred tax assets and changes in tax uncertainties. The Company's interim income tax rate may differ from its estimated annual effective tax rate because accounting standards require the Company to exclude certain entities expected to generate a pretax loss from the overall computation of the estimated annual effective tax rate, as well as items accounted for in the interim period incurred, which may result in a significant variation in the customary relationship between (benefit from) provision for income taxes and pretax accounting income (loss) in interim reporting periods. The effective rates for the three month periods ended April 3, 2015 and March 28, 2014 were a benefit of 3.9% and a provision of 3.7%, respectively.

The effective rate for the three months ended April 3, 2015 differed from the U.S. statutory rate primarily due to state income taxes, lower tax rates of our foreign operations compared to the U.S. federal rates, geographical mix of earnings, changes in estimated uncertain tax positions, and recognition of valuation allowances related to losses in the UK and in U.S. federal and state jurisdictions.

The effective rate for the three months ended March 28, 2014 differed from the U.S. statutory rate primarily due to state income taxes, lower tax rates of our foreign operations compared to the U.S. federal rates, geographical mix of earnings, and recognition of valuation allowances related to losses in the UK and in U.S. federal and state jurisdictions.