Income Taxes	6 Months Ended
Mar. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes In accordance with ASC 740, Income Taxes (ASC 740), each interim period is considered integral to the annual period, and tax expense is measured using an estimated annual effective tax rate. An entity is required to record income tax expense each quarter based on its annual effective tax rate estimated for the full fiscal year and use that rate to provide for income taxes on a current year-to-date basis, adjusted for discrete taxable events that occur during the interim period. The Company’s effective tax rate for the three and six months ended March 30, 2019 was a benefit of 22.9% and 30.2%, respectively, compared to a benefit of 1.4% and 53.8% for the corresponding periods in the prior year. For the three months ended March 30, 2019, the effective tax rate differed from the statutory rate primarily due to the impact of the Medical Aesthetics impairment charge and earnings in jurisdictions subject to lower tax rates. For the six months ended March 30, 2019, the effective tax rate differed from the statutory tax rate primarily due to the effect of the Medical Aesthetics impairment charge, earnings in jurisdictions subject to lower tax rates, a $19.2 million discrete benefit related to an internal restructuring, and finalizing the impact of the enactment of the Tax Cuts and Jobs Act (the "Act") in the first quarter of fiscal 2019. For the three months ended March 31, 2018, the effective tax rate differed from the statutory tax rate primarily due to the operating loss resulting from the goodwill impairment charge recorded in the second quarter of fiscal 2018, substantially all of which was non-deductible. For the six months ended March 31, 2018, the effective tax rate differed from the statutory tax rate primarily due to the year-to-date operating loss resulting from the goodwill impairment charge recorded in the second quarter of fiscal 2018, substantially all of which was non-deductible, and the favorable impact of the Act enacted on December 22, 2017. Tax Reform The Act, which was enacted on December 22, 2017 (the first quarter of fiscal 2018), significantly revised the U.S. system of corporate taxation by, among other things, lowering the U.S. corporate income tax rate from 35% to 21%, implementing a new international tax system, broadening the tax base and imposing a tax on deemed repatriated earnings of foreign subsidiaries. On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) directing SEC registrants to consider the impact of the U.S. legislation as “provisional” when it does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the change in tax law. In accordance with SAB 118, during fiscal 2018 the Company recorded its best estimates based on its interpretation of the U.S. legislation while it continued to accumulate data to finalize the underlying calculations. As of December 29, 2018, the Company completed its accounting for the tax effects of enactment of the Act. As described below, the Company completed its calculation of the effects on its existing deferred tax balances and the one-time transition tax, and recognized a final net benefit amount of $341.2 million, which is included as a component of income tax expense. At March 31, 2018, the Company had not completed its accounting for the tax effects of enactment of the Act; however, the Company had made a reasonable estimate of the effects on its existing deferred tax balances and the onetime transition tax, and recognized a provisional net benefit of $327.0 million, which was included in income tax expense as of March 31, 2018. This estimate was updated as September 29, 2018 and the Company recorded a net benefit of $346.2 million in fiscal 2018. The benefit reduction of $5.0 million recorded in the three months ended December 29, 2018 primarily related to credit utilization limitations and executive compensation deduction disallowances resulting from the completion of computations reflecting the effects of clarifying guidance issued by the U.S. Treasury during the quarter. Deferred tax assets and liabilities: The Company recorded a final net reduction of its deferred tax liabilities of $341.2 million related to the Act, as compared to the Company’s provisional net reduction of $346.4 million as of September 29, 2018. The Act resulted in a tax benefit pertaining to the re-measurement of certain U.S. deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%, partially offset by additional tax expense pertaining to credit utilization limitations and executive compensation deduction disallowances. Foreign tax effects: The one-time transition tax is based on the Company’s total post-1986 earnings and profits (E&P) which were previously deferred from U.S. income taxes. The Company finalized its calculation of the total post-1986 foreign E&P for these foreign subsidiaries resulting in no cumulative net income tax expense related to the one-time transition tax. The Act subjects a U.S. shareholder to tax on GILTI earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. The Company will account for GILTI in the year the tax is incurred as a period cost. Other Tax Accounting Pronouncements On October 24, 2016, the FASB issued ASU 2016-16, which removes the prohibition in ASC 740 against the immediate recognition of the current and deferred income tax effects of intra-entity transfers of assets other than inventory. Under ASU 2016-16, the selling (transferring) entity is required to recognize a current tax expense or benefit upon transfer of the asset. Similarly, the purchasing (receiving) entity is required to recognize a deferred tax asset or deferred tax liability, as well as the related deferred tax benefit or expense, upon receipt of the asset. This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The Company adopted ASU 2016-16 in the first quarter of fiscal 2019 on a modified retrospective basis through a cumulative-effect adjustment to decrease the opening balance of accumulated deficit within stockholders' equity as of September 30, 2018, the first day of fiscal 2019. This change in accounting principle resulted in an increase in deferred tax assets of $2.9 million, a decrease in accumulated deficit of $2.5 million, and a decrease in prepaid taxes of $0.4 million as of the beginning of the Company’s fiscal year beginning September 30, 2018. The Company was required to account for the internal restructuring discussed above under ASU 2016-16 and recorded a $29.5 million increase to income tax expense and income tax liabilities and a decrease of $48.7 million to deferred tax expense and net deferred tax liabilities for the six months ended March 30, 2019. The net result is an increase to net income of $19.2 million, or an earnings per share increase of $0.07. Non-Income Tax Matters The Company is subject to tax examinations for value added, sales-based, payroll and other non-income tax items. A number of these examinations are ongoing in various jurisdictions. The Company takes certain non-income tax positions in the jurisdictions in which it operates pursuant to ASC 450. In the normal course of business, the Company's positions and conclusions related to its non-income tax positions could be challenged, resulting in assessments by governmental authorities. While the Company believes estimated losses previously recorded are reasonable, certain audits are still ongoing and additional charges could be recorded in the future.

Income Taxes

In accordance with ASC 740, Income Taxes (ASC 740), each interim period is considered integral to the annual period, and tax expense is measured using an estimated annual effective tax rate. An entity is required to record income tax expense each quarter based on its annual effective tax rate estimated for the full fiscal year and use that rate to provide for income taxes on a current year-to-date basis, adjusted for discrete taxable events that occur during the interim period.

The Company’s effective tax rate for the three and six months ended March 30, 2019 was a benefit of 22.9% and 30.2%, respectively, compared to a benefit of 1.4% and 53.8% for the corresponding periods in the prior year. For the three months ended March 30, 2019, the effective tax rate differed from the statutory rate primarily due to the impact of the Medical Aesthetics impairment charge and earnings in jurisdictions subject to lower tax rates. For the six months ended March 30, 2019, the effective tax rate differed from the statutory tax rate primarily due to the effect of the Medical Aesthetics impairment charge, earnings in jurisdictions subject to lower tax rates, a $19.2 million discrete benefit related to an internal restructuring, and finalizing the impact of the enactment of the Tax Cuts and Jobs Act (the "Act") in the first quarter of fiscal 2019.

For the three months ended March 31, 2018, the effective tax rate differed from the statutory tax rate primarily due to the operating loss resulting from the goodwill impairment charge recorded in the second quarter of fiscal 2018, substantially all of which was non-deductible. For the six months ended March 31, 2018, the effective tax rate differed from the statutory tax rate primarily due to the year-to-date operating loss resulting from the goodwill impairment charge recorded in the second quarter of fiscal 2018, substantially all of which was non-deductible, and the favorable impact of the Act enacted on December 22, 2017.

Tax Reform

The Act, which was enacted on December 22, 2017 (the first quarter of fiscal 2018), significantly revised the U.S. system of corporate taxation by, among other things, lowering the U.S. corporate income tax rate from 35% to 21%, implementing a new international tax system, broadening the tax base and imposing a tax on deemed repatriated earnings of foreign subsidiaries.

On December 22, 2017, the SEC issued Staff Accounting Bulletin No. 118, Income Tax Accounting Implications of the Tax Cuts and Jobs Act (“SAB 118”) directing SEC registrants to consider the impact of the U.S. legislation as “provisional” when it does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete its accounting for the change in tax law. In accordance with SAB 118, during fiscal 2018 the Company recorded its best estimates based on its interpretation of the U.S. legislation while it continued to accumulate data to finalize the underlying calculations.

As of December 29, 2018, the Company completed its accounting for the tax effects of enactment of the Act. As described below, the Company completed its calculation of the effects on its existing deferred tax balances and the one-time transition tax, and recognized a final net benefit amount of $341.2 million, which is included as a component of income tax expense. At March 31, 2018, the Company had not completed its accounting for the tax effects of enactment of the Act; however, the Company had made a reasonable estimate of the effects on its existing deferred tax balances and the onetime transition tax, and recognized a provisional net benefit of $327.0 million, which was included in income tax expense as of March 31, 2018. This estimate was updated as September 29, 2018 and the Company recorded a net benefit of $346.2 million in fiscal 2018. The benefit reduction of $5.0 million recorded in the three months ended December 29, 2018 primarily related to credit utilization limitations and executive compensation deduction disallowances resulting from the completion of computations reflecting the effects of clarifying guidance issued by the U.S. Treasury during the quarter.

Deferred tax assets and liabilities: The Company recorded a final net reduction of its deferred tax liabilities of $341.2 million related to the Act, as compared to the Company’s provisional net reduction of $346.4 million as of September 29, 2018. The Act resulted in a tax benefit pertaining to the re-measurement of certain U.S. deferred tax assets and liabilities based on the rates at which they are expected to reverse in the future, which is generally 21%, partially offset by additional tax expense pertaining to credit utilization limitations and executive compensation deduction disallowances.

Foreign tax effects: The one-time transition tax is based on the Company’s total post-1986 earnings and profits (E&P) which were previously deferred from U.S. income taxes. The Company finalized its calculation of the total post-1986 foreign E&P for these foreign subsidiaries resulting in no cumulative net income tax expense related to the one-time transition tax.

The Act subjects a U.S. shareholder to tax on GILTI earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or to provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. The Company will account for GILTI in the year the tax is incurred as a period cost.

Other Tax Accounting Pronouncements

On October 24, 2016, the FASB issued ASU 2016-16, which removes the prohibition in ASC 740 against the immediate recognition of the current and deferred income tax effects of intra-entity transfers of assets other than inventory. Under ASU 2016-16, the selling (transferring) entity is required to recognize a current tax expense or benefit upon transfer of the asset. Similarly, the purchasing (receiving) entity is required to recognize a deferred tax asset or deferred tax liability, as well as the related deferred tax benefit or expense, upon receipt of the asset.

This ASU is effective for annual periods beginning after December 15, 2017, and interim periods within those annual periods. The Company adopted ASU 2016-16 in the first quarter of fiscal 2019 on a modified retrospective basis through a cumulative-effect adjustment to decrease the opening balance of accumulated deficit within stockholders' equity as of September 30, 2018, the first day of fiscal 2019. This change in accounting principle resulted in an increase in deferred tax assets of $2.9 million, a decrease in accumulated deficit of $2.5 million, and a decrease in prepaid taxes of $0.4 million as of the beginning of the Company’s fiscal year beginning September 30, 2018.

The Company was required to account for the internal restructuring discussed above under ASU 2016-16 and recorded a $29.5 million increase to income tax expense and income tax liabilities and a decrease of $48.7 million to deferred tax expense and net deferred tax liabilities for the six months ended March 30, 2019. The net result is an increase to net income of $19.2 million, or an earnings per share increase of $0.07.

Non-Income Tax Matters

The Company is subject to tax examinations for value added, sales-based, payroll and other non-income tax items. A number of these examinations are ongoing in various jurisdictions. The Company takes certain non-income tax positions in the jurisdictions in which it operates pursuant to ASC 450. In the normal course of business, the Company's positions and conclusions related to its non-income tax positions could be challenged, resulting in assessments by governmental authorities. While the Company believes estimated losses previously recorded are reasonable, certain audits are still ongoing and additional charges could be recorded in the future.