Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Common Stock Including Additional Paid in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Sep. 25, 2021	19,084,000
Balance at Sep. 25, 2021	$ 73,597	$ (13,383)	$ 785,440	$ 845,654
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	119,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 14,124	0	0	14,124
Issuance of common stock for employee stock purchase plan (in shares)	16,000
Issuance of common stock for employee stock purchase plan	$ 2,036	0	0	2,036
Foreign currency translation adjustment	0	(330)	0	(330)
Dividends declared	0	0	(49,819)	(49,819)
Share-based compensation	4,269	0	0	4,269
Net Earnings	$ 0	0	47,235	47,235
Balance (in shares) at Sep. 24, 2022	19,219,000
Balance at Sep. 24, 2022	$ 94,026	(13,713)	782,856	863,169
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	96,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 13,111	0	0	13,111
Issuance of common stock for employee stock purchase plan (in shares)	17,000
Issuance of common stock for employee stock purchase plan	$ 2,101	0	0	2,101
Foreign currency translation adjustment	0	3,547	0	3,547
Dividends declared	0	0	(54,634)	(54,634)
Share-based compensation	5,318	0	0	5,318
Net Earnings	$ 0	0	78,906	$ 78,906
Balance (in shares) at Sep. 30, 2023	19,332,000			19,332,000
Balance at Sep. 30, 2023	$ 114,556	(10,166)	807,128	$ 911,518
Common Stock issued in connection with employee and director plans, net of tax withheld (in shares)	110,000
Common Stock issued in connection with employee and director plans, net of tax withheld	$ 13,231	0	0	13,231
Issuance of common stock for employee stock purchase plan (in shares)	18,000
Issuance of common stock for employee stock purchase plan	$ 2,509	0	0	2,509
Foreign currency translation adjustment	0		0	(5,133)
Dividends declared	0		(57,926)	(57,926)
Share-based compensation	6,220	0	0	6,220
Net Earnings	$ 0	0	86,551	$ 86,551
Balance (in shares) at Sep. 28, 2024	19,460,000			19,460,000
Balance at Sep. 28, 2024	$ 136,516	$ (15,299)	$ 835,753	$ 956,970