v3.26.1
Stockholders' Equity And Stock-Based Compensation (Summary Of Stock Options Issued To Officers, Directors, And Employees Under 2000 Stock Incentive Plan And 2005 Stock Plan) (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended
Jun. 26, 2026
USD ($)
$ / shares
shares
Shares  
Shares, Options outstanding at beginning of period (in shares) | shares 3,259
Shares, Grants (in shares) | shares 504
Shares, Exercises (in shares) | shares (168)
Shares, Forfeitures and cancellations (in shares) | shares (24)
Shares, Options vested and expected to vest (in shares) | shares 3,404
Weighted-Average Exercise Price  
Weighted Average Exercise Price, Options outstanding at beginning of period (in usd per share) $ 72.71
Weighted Average Exercise Price, Grants (in usd per share) 66.62
Weighted Average Exercise Price, Exercises (in usd per share) 52.32
Weighted Average Exercise Price, Forfeitures and cancellations (in usd per share) 68.40
Weighted Average Exercise Price, Options outstanding at end of period (in usd per share) 72.84
Weighted Average Exercise Price, Options vested and expected to vest (in usd per share) 72.94
Weighted Average Exercise Price, Options exercisable (in usd per share) $ 73.05
Weighted Average Remaining Contractual Life, Options vested and expected to vest at end of period 5 years 2 months 8 days
Weighted Average Remaining Contractual Life, Options exercisable 4 years 1 month 17 days
Aggregate Intrinsic Value, Options outstanding | $ $ 509
Aggregate Intrinsic Value, Options vested and expected to vest | $ 509
Aggregate Intrinsic Value, Options exercisable | $ $ 509
Year End Stock Price (in dollars per share) $ 53.49
2005 Stock Plan | Class A Common Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options vested and exercisable (in shares) | shares 2,626
Weighted average remaining contractual life 5 years 3 months 18 days
Shares  
Shares, Options outstanding at end of period (in shares) | shares 3,571
Weighted-Average Exercise Price  
Weighted Average Remaining Contractual Life, Options outstanding 5 years 3 months 18 days