Income Taxes	6 Months Ended
Jul. 04, 2015
Income Tax Disclosure [Abstract]
Income taxes [Text Block]	Income Taxes Our income tax provision for interim periods is determined using an estimate of our annual effective tax rate adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate and, if our estimated annual tax rate changes, we make a cumulative adjustment. The 2015 annual effective tax rate is estimated to approximate 39%. Our annual effective tax rate for 2014 was 39.5%. At December 31, 2014, we had unrecognized tax benefits of $1,949, of which $1,512 would affect our effective rate if recognized, and accrued interest expense related to unrecognized benefits of $77. At July 4, 2015, there were no significant changes in the unrecognized tax benefits, including the amount that would affect our effective rate if recognized, or the accrued interest expense related to the unrecognized benefits. Unrecognized tax benefits are the differences between a tax position taken, or expected to be taken in a tax return, and the benefit recognized for financial reporting purposes. The Company is routinely under audit by federal, state, local and Canadian authorities in the area of income tax. These audits include questioning the timing and the amount of income and deductions and the allocation of income and deductions among various tax jurisdictions. During the fourth quarter 2013, the U.S. Internal Revenue Service completed its audit of the Company's U.S. income tax returns for 2010 and 2011 and, during 2010, Canada Revenue Agency completed its audit of the Company's Canadian operations for 2006, 2007 and 2008. With the exception of U.S. state jurisdictions, the Company is no longer subject to examination by tax authorities for the years through 2010. As of July 4, 2015, we believe it is reasonably possible that the total amount of unrecognized tax benefits will not significantly increase or decrease.

Income Taxes

6 Months Ended

Jul. 04, 2015

Income Taxes

Our income tax provision for interim periods is determined using an estimate of our annual effective tax rate adjusted for discrete items, if any, that are taken into account in the relevant period. Each quarter we update our estimate of the annual effective tax rate and, if our estimated annual tax rate changes, we make a cumulative adjustment. The 2015 annual effective tax rate is estimated to approximate 39%. Our annual effective tax rate for 2014 was 39.5%.

At December 31, 2014, we had unrecognized tax benefits of $1,949, of which $1,512 would affect our effective rate if recognized, and accrued interest expense related to unrecognized benefits of $77. At July 4, 2015, there were no significant changes in the unrecognized tax benefits, including the amount that would affect our effective rate if recognized, or the accrued interest expense related to the unrecognized benefits. Unrecognized tax benefits are the differences between a tax position taken, or expected to be taken in a tax return, and the benefit recognized for financial reporting purposes.

The Company is routinely under audit by federal, state, local and Canadian authorities in the area of income tax. These audits include questioning the timing and the amount of income and deductions and the allocation of income and deductions among various tax jurisdictions. During the fourth quarter 2013, the U.S. Internal Revenue Service completed its audit of the Company's U.S. income tax returns for 2010 and 2011 and, during 2010, Canada Revenue Agency completed its audit of the Company's Canadian operations for 2006, 2007 and 2008. With the exception of U.S. state jurisdictions, the Company is no longer subject to examination by tax authorities for the years through 2010. As of July 4, 2015, we believe it is reasonably possible that the total amount of unrecognized tax benefits will not significantly increase or decrease.