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Equity-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands | 12 Months Ended |
--- | --- | ---
Oct. 02, 2021 | Oct. 03, 2020 | Sep. 28, 2019 | Jan. 07, 2015
Employee Stock Purchase Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Maximum discounted purchase price of common stock as a percent of fair market value | 85.00% |  |  |
2014 Long Term Incentive Plan |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Shares authorized for the issuance |  |  |  | 2,000,000
Class A Common Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Closing price of common stock | $ 78.56 |  |  |
Class B Common Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Closing price of common stock | $ 77.18 |  |  |
Stock Appreciation Rights (SARs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Award terms | 10 years |  |  |
Unvested compensation expense | $ 2,511 |  |  |
Unvested compensation expense weighted-average period of recognition, in years | 2 years |  |  |
Vesting schedule | 3 years |  |  |
Total fair value of awards vested | $ 2,558 | $ 2,825 | $ 2,871 |
Performance-based Restricted Stock Units (PSUs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Unvested compensation expense | $ 1,990 |  |  |
Unvested compensation expense weighted-average period of recognition, in years | 2 years |  |  |
Performance period for PSUs | 3 years |  |  |
Vesting schedule | 3 years |  |  |
Granted in period | 28,442 |  |  |
Weighted Average Grant Date Fair Value, Granted | $ 73.39 |  |  |
Vested in period | 30,467 |  |  |
Weighted Average Grant Date Fair Value, Vested | $ 80.22 |  |  |
Performance-based Restricted Stock Units (PSUs) | Minimum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Performance targets for performance based units | 0.00% |  |  |
Performance-based Restricted Stock Units (PSUs) | Maximum |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Performance targets for performance based units | 200.00% |  |  |
Performance-based Restricted Stock Units (PSUs) | Class B Common Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Common stock issued for awards granted | 11,500 |  |  |
Time vested restricted stock units (TVA) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Unvested compensation expense | $ 1,459 |  |  |
Unvested compensation expense weighted-average period of recognition, in years | 2 years |  |  |
TVA tranche vesting period start subsequent to award | 1 year |  |  |
Granted in period | 26,153 |  |  |
Weighted Average Grant Date Fair Value, Granted | $ 79.87 |  |  |
Restricted Stock Awards (RSAs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Granted in period | 9,914 |  |  |
Weighted Average Grant Date Fair Value, Granted | $ 73.69 |  |  |
Vested in period | 9,914 |  |  |
Weighted Average Grant Date Fair Value, Vested | $ 73.69 |  |  |
Total fair value of awards vested | $ 730 |  |  |
Short Term Incentive Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |
Granted in period | 45,834 |  |  |
Weighted Average Grant Date Fair Value, Granted | $ 86.56 |  |  |
Vested in period | 45,834 |  |  |
Weighted Average Grant Date Fair Value, Vested | $ 86.56 |  |  |
Total fair value of awards vested | $ 3,967 |  |  |

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