Income Taxes	6 Months Ended
Jun. 28, 2015
Income Tax Disclosure [Abstract]
Income taxes	Income taxes The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate was approximately $24.1 million as of June 28, 2015 and $23.2 million as of December 28, 2014. The amount of accrued interest and penalties payable related to unrecognized tax benefits was $7.3 million as of June 28, 2015 and $6.9 million as of December 28, 2014. It is reasonably possible that the amount of unrecognized benefits with respect to certain of our unrecognized tax positions will significantly increase or decrease within the next 12 months. These changes may be the result of settlement of ongoing audits, lapses of statutes of limitations or other regulatory developments. At this time, we estimate the amount of gross unrecognized tax positions may be reduced by up to approximately $4.4 million within the next 12 months primarily due to lapses of statutes of limitations and settlement of ongoing audits in various jurisdictions.

Income Taxes

6 Months Ended

Jun. 28, 2015

The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate was approximately $24.1 million as of June 28, 2015 and $23.2 million as of December 28, 2014. The amount of accrued interest and penalties payable related to unrecognized tax benefits was $7.3 million as of June 28, 2015 and $6.9 million as of December 28, 2014.

It is reasonably possible that the amount of unrecognized benefits with respect to certain of our unrecognized tax positions will significantly increase or decrease within the next 12 months. These changes may be the result of settlement of ongoing audits, lapses of statutes of limitations or other regulatory developments. At this time, we estimate the amount of gross unrecognized tax positions may be reduced by up to approximately $4.4 million within the next 12 months primarily due to lapses of statutes of limitations and settlement of ongoing audits in various jurisdictions.