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Revenue Recognition (Performance Obligation) (Details)
$ in Millions
 12 Months Ended
Sep. 26, 2025
USD ($)
country
Revenue from Contract with Customer [Abstract]  
Remaining performance obligation | $ $ 61.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Countries technologies are licensed in | country 60
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-09-27  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction period 1 year
Remaining performance obligation, percent 53.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-09-26  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction period 1 year
Remaining performance obligation, percent 20.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-09-25  
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]  
Expected timing of satisfaction period 1 year
Remaining performance obligation, percent 27.00%