Income Taxes	9 Months Ended
Sep. 29, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Accounting Standards Codification 740 (“ASC 740”) requires companies to apply their estimated annual effective tax rate on a year-to-date basis in each interim period. These rates are derived, in part, from expected annual pre-tax income or loss. In the thirteen and thirty-nine weeks ended September 29, 2018 and the thirteen and thirty-nine weeks ended September 30, 2017, the Company applied an estimated annual effective tax rate to the interim period pre-tax income (loss) to calculate the income tax expense (benefit). For the thirteen and thirty-nine weeks ended September 29, 2018, the effective income tax rate was 12.8% and (6.7)%. The Company recorded income tax (benefit)/expense for the thirteen and thirty-nine weeks ended September 29, 2018 of $(1,565) and $2,182. The negative effective tax rate for the thirteen and thirty-nine weeks ended September 29, 2018 was primarily the result of the new provisions introduced by the Tax Cuts and Jobs Act (the "Tax Act") including the new provision on Global Intangible Low-Taxed Income ("GILTI") and the IRC Section 163(j) interest limitation. The effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 29, 2018 due to recognizing no benefit on losses in jurisdictions where valuation allowances are recorded against net deferred tax assets, certain non-deductible expenses, and several aspects of the Tax Act. The effective income tax rate was 28.9% and 41.2% for the thirteen and thirty-nine weeks ended September 30, 2017. The Company recorded income tax expense/(benefit) for the thirteen and thirty-nine weeks ended September 30, 2017 of $(538) and $(4,759), respectively. The effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 30, 2017 primarily due to the decrease in the valuation allowance attributable to a foreign subsidiary and certain non-deductible expenses. Additionally, the effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 30, 2017 due in part to a tax benefit recorded in the current period from the reconciliation of a prior year’s tax return to the amount reported for tax provision purposes. The remaining differences between the effective income tax rate and the federal statutory rate in the thirteen and thirty-nine weeks ended September 30, 2017 were due to state and foreign income taxes. In December 2017, the Tax Act was signed into law making significant changes to the Internal Revenue Code. Changes included, among other things, several new taxes that may impact the Company’s 2018 effective tax rate. The new taxes include: GILTI, Foreign Derived Intangible Income (FDII), Base Erosion and Anti-Abuse Tax (BEAT), and an IRC Section 163(j) interest limitation (Interest Limitation). For the thirty-nine weeks ended September 29, 2018, we have not recorded provisional estimates in our effective tax rate for FDII or BEAT because we currently estimate that these provisions of the Tax Act will not apply in 2018. However, the Company may be subject to GILTI, which is a tax on foreign income in excess of a deemed return on tangible assets of foreign subsidiaries. The Company currently included a provisional estimated increase to the effective tax rate related to GILTI income from its foreign subsidiaries. Companies subject to GILTI have the option to account for the GILTI tax as a period cost if and when incurred, or to recognize deferred taxes for temporary differences including outside basis differences expected to reverse as GILTI. The Company has elected to account for GILTI as a period cost, and therefore has included GILTI expense in the effective tax rate calculation. Lastly, the Company recorded a provisional increase to income tax expense for recording a $7,843 valuation allowance on the Company’s Interest Limitation for 2018. The Company will continue to refine our provisional estimates for our computations of the GILTI, FDII, BEAT and the valuation allowance recorded on the Interest Limitation as we gather additional information. In accordance with U.S. Securities and Exchange Commission Staff Accounting Bulletin No. 118 (“SAB 118”), the provisional amounts recorded represent reasonable estimates of the effects of the Tax Act for which the analysis is not yet complete. As the Company completes its analysis of the Tax Act, including collecting, preparing and analyzing necessary information, performing and refining calculations and obtaining additional guidance from the U.S. Internal Revenue Services (IRS), U.S. Treasury Department, FASB or other standard setting and regulatory bodies on the Tax Act, it may record adjustments to the provisional amounts, which may be material. In accordance with SAB 118, the Company’s accounting for the tax effects of the Tax Act will be completed during the measurement period, which should not extend beyond one year from the enactment date.

Accounting Standards Codification 740 (“ASC 740”) requires companies to apply their estimated annual effective tax rate on a year-to-date basis in each interim period. These rates are derived, in part, from expected annual pre-tax income or loss. In the thirteen and thirty-nine weeks ended September 29, 2018 and the thirteen and thirty-nine weeks ended September 30, 2017, the Company applied an estimated annual effective tax rate to the interim period pre-tax income (loss) to calculate the income tax expense (benefit).

For the thirteen and thirty-nine weeks ended September 29, 2018, the effective income tax rate was 12.8% and (6.7)%. The Company recorded income tax (benefit)/expense for the thirteen and thirty-nine weeks ended September 29, 2018 of $(1,565) and $2,182. The negative effective tax rate for the thirteen and thirty-nine weeks ended September 29, 2018 was primarily the result of the new provisions introduced by the Tax Cuts and Jobs Act (the "Tax Act") including the new provision on Global Intangible Low-Taxed Income ("GILTI") and the IRC Section 163(j) interest limitation. The effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 29, 2018 due to recognizing no benefit on losses in jurisdictions where valuation allowances are recorded against net deferred tax assets, certain non-deductible expenses, and several aspects of the Tax Act.

The effective income tax rate was 28.9% and 41.2% for the thirteen and thirty-nine weeks ended September 30, 2017. The Company recorded income tax expense/(benefit) for the thirteen and thirty-nine weeks ended September 30, 2017 of $(538) and $(4,759), respectively. The effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 30, 2017 primarily due to the decrease in the valuation allowance attributable to a foreign subsidiary and certain non-deductible expenses. Additionally, the effective income tax rate differed from the federal statutory tax rate in the thirteen and thirty-nine weeks ended September 30, 2017 due in part to a tax benefit recorded in the current period from the reconciliation of a prior year’s tax return to the amount reported for tax provision purposes. The remaining differences between the effective income tax rate and the federal statutory rate in the thirteen and thirty-nine weeks ended September 30, 2017 were due to state and foreign income taxes.

In December 2017, the Tax Act was signed into law making significant changes to the Internal Revenue Code. Changes included, among other things, several new taxes that may impact the Company’s 2018 effective tax rate. The new taxes include: GILTI, Foreign Derived Intangible Income (FDII), Base Erosion and Anti-Abuse Tax (BEAT), and an IRC Section 163(j) interest limitation (Interest Limitation). For the thirty-nine weeks ended September 29, 2018, we have not recorded provisional estimates in our effective tax rate for FDII or BEAT because we currently estimate that these provisions of the Tax Act will not apply in 2018. However, the Company may be subject to GILTI, which is a tax on foreign income in excess of a deemed return on tangible assets of foreign subsidiaries. The Company currently included a provisional estimated increase to the effective tax rate related to GILTI income from its foreign subsidiaries. Companies subject to GILTI have the option to account for the GILTI tax as a period cost if and when incurred, or to recognize deferred taxes for temporary differences including outside basis differences expected to reverse as GILTI. The Company has elected to account for GILTI as a period cost, and therefore has included GILTI expense in the effective tax rate calculation. Lastly, the Company recorded a provisional increase to income tax expense for recording a $7,843 valuation allowance on the Company’s Interest Limitation for 2018. The Company will continue to refine our provisional estimates for our computations of the GILTI, FDII, BEAT and the valuation allowance recorded on the Interest Limitation as we gather additional information.

In accordance with U.S. Securities and Exchange Commission Staff Accounting Bulletin No. 118 (“SAB 118”), the provisional amounts recorded represent reasonable estimates of the effects of the Tax Act for which the analysis is not yet complete. As the Company completes its analysis of the Tax Act, including collecting, preparing and analyzing necessary information, performing and refining calculations and obtaining additional guidance from the U.S. Internal Revenue Services (IRS), U.S. Treasury Department, FASB or other standard setting and regulatory bodies on the Tax Act, it may record adjustments to the provisional amounts, which may be material. In accordance with SAB 118, the Company’s accounting for the tax effects of the Tax Act will be completed during the measurement period, which should not extend beyond one year from the enactment date.