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Income Taxes - Reconciliation of Income Tax (Benefit) at U.S. Federal Statutory Rate to Company's Effective Tax Rate (Details) | 12 Months Ended
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Sep. 28, 2024 | Sep. 30, 2023 | Sep. 24, 2022
Increase (decrease) in tax resulting from: |  |  |
Income tax provision at federal statutory rate | 21.00% | 21.00% | 21.00%
Cynosure loss on sale and carryback | 0.00% | 0.00% | (1.20%)
State income taxes, net of federal benefit | 2.50% | 4.10% | 2.90%
U.S. tax on foreign earnings | 0.50% | (1.00%) | (2.60%)
Internal Restructuring | 0.00% | 0.00% | (0.90%)
Tax credits | (1.60%) | (1.10%) | (0.50%)
Unrecognized tax benefits | 3.90% | 3.50% | 0.20%
Compensation | 1.00% | 0.80% | 0.20%
Foreign rate differential | (6.80%) | (4.80%) | (0.80%)
Change in deferred tax | 0.00% | 0.00% | 0.40%
Assets held-for-sale charge | 0.00% | 1.50% | 0.00%
Change in valuation allowance | 2.70% | 8.20% | 0.40%
Return to provision | (1.20%) | (1.90%) | (0.70%)
Worthless stock deduction | (12.40%) | 0.00% | 0.00%
Other | (0.90%) | 2.30% | (0.40%)
Effective income tax rate | 8.70% | 32.60% | 18.00%

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- Definition Effective income tax rate reconciliation benefit expense research and development. + References No definition available. + Details
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to the difference in the deductibility or nondeductibility of executive compensation (i.e., those subject to Section 162(m) limitations), including equity-based compensation and salary and bonus compensation. + References No definition available. + Details
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- Definition The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in unrecognized tax benefits recorded in the statement of operations + References No definition available. + Details
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- Definition Effective income tax reconciliation loss on sale of Cynosure + References No definition available. + Details
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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- Definition Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 6.I.Fact.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479360/740-10-S99-1 + Details
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