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Shareholders' Equity (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020	Nov. 20, 2020
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
2014 Long Term Incentive Plan
Class of Stock
Number of shares authorized for awards available for grant	737,625
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	486,923	243,147
Stock repurchased during period, value	$ 35,626	$ 19,253
Stock repurchase program, remaining number of shares authorized to be repurchased	2,269,930
Share Repurchase Program | Class A and Class B Common Stock
Class of Stock
Stock repurchased during period, shares		155,963	2,881,116
Stock repurchased during period, value		$ 10,193	$ 215,776
Stock repurchase program, remaining number of shares authorized to be repurchased	0

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