Income Taxes	3 Months Ended
Apr. 01, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company’s effective tax rate for the three months ended April 1, 2018 and April 2, 2017 was (40.5)% and 30.5%, respectively. The Company’s effective tax rate varies from the U.S. federal statutory rate of 21% and 35% in the first quarter of 2018 and 2017, respectively, primarily due to (1) net excess tax benefits related to share-based payments, which resulted in a benefit of $6,093 in the first quarter of 2018, (2) the impact of the comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”) and (3) state income taxes. On December 22, 2017, the U.S. government enacted the Tax Act. In our continued analysis of the impact of the Tax Act in the first quarter of 2018 under Staff Accounting Bulletin 118, we have adjusted our provisional amounts for a discrete net tax benefit of $3,623. This net benefit includes $5,578 for the tax benefit of foreign tax credits, partially offset by a net expense of $1,955 related to the impact of the corporate rate reduction on our net deferred tax liabilities. The ultimate impact of the Tax Act may differ from these provisional amounts, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made and additional regulatory guidance that may be issued. There were no significant changes to unrecognized tax benefits or related interest and penalties for the Company for the three months ended April 1, 2018. The current portion of refundable income taxes was $24,697 and $26,262 as of April 1, 2018 and December 31, 2017, respectively, and is included in “Accounts and notes receivable, net” in the condensed consolidated balance sheets.

Income Taxes

The Company’s effective tax rate for the three months ended April 1, 2018 and April 2, 2017 was (40.5)% and 30.5%, respectively. The Company’s effective tax rate varies from the U.S. federal statutory rate of 21% and 35% in the first quarter of 2018 and 2017, respectively, primarily due to (1) net excess tax benefits related to share-based payments, which resulted in a benefit of $6,093 in the first quarter of 2018, (2) the impact of the comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”) and (3) state income taxes.

On December 22, 2017, the U.S. government enacted the Tax Act. In our continued analysis of the impact of the Tax Act in the first quarter of 2018 under Staff Accounting Bulletin 118, we have adjusted our provisional amounts for a discrete net tax benefit of $3,623. This net benefit includes $5,578 for the tax benefit of foreign tax credits, partially offset by a net expense of $1,955 related to the impact of the corporate rate reduction on our net deferred tax liabilities. The ultimate impact of the Tax Act may differ from these provisional amounts, possibly materially, due to, among other things, additional analysis, changes in interpretations and assumptions the Company has made and additional regulatory guidance that may be issued.

There were no significant changes to unrecognized tax benefits or related interest and penalties for the Company for the three months ended April 1, 2018.

The current portion of refundable income taxes was $24,697 and $26,262 as of April 1, 2018 and December 31, 2017, respectively, and is included in “Accounts and notes receivable, net” in the condensed consolidated balance sheets.