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Shareholders' Equity (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Class A Common Stock
Class of Stock
Common stock voting rights	one-tenth
Minimum percentage of the board of directors to be elected by class of shares	25.00%
Class B Common Stock
Class of Stock
Common stock voting rights	one
Common stock conversion basis	one-for-one
Preferred Stock
Class of Stock
Preferred stock, shares authorized	10,000,000
2025 Long Term Incentive Plan
Class of Stock
Number of shares authorized for awards available for grant	1,458,225
Share Repurchase Program - November 2020 | Class A and Class B Common Stock
Class of Stock
Stock Repurchase Program, Number of Shares Authorized to be Repurchased	3,000,000
Stock repurchased during period, shares	511,974	0	97,849
Stock repurchased during period, value	$ 100,705		$ 7,697
Stock repurchase program, remaining number of shares authorized to be repurchased	1,660,107

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