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Restructuring (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 26, 2025	Sep. 27, 2024	Sep. 29, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 15,007	$ 6,384	$ 47,061
Impairment loss on internally developed software	0	0	$ 16,225
April 2024 Restructuring Plan | Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount		3,000
April 2024 Restructuring Plan | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount	11,000
September 2023 Restructuring Plan | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount		40,000
June 2023 Restructuring Plan | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount		20,000
November 2024 Restructuring Plan | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount	20,000
September 2025 Restructuring Plan | Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Effect on Future Earnings, Amount	20,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	11,624	6,413
Employee Severance [Member] | April 2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		4,600
Employee Severance [Member] | September 2023 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		7,400
Employee Severance [Member] | November 2024 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	9,200
Employee Severance [Member] | September 2025 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges	6,100
Restructuring and Related Cost, Expected Cost Remaining	10,000
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (3,383)	$ 29

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Amount of impairment loss from capitalized computer software costs.

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