Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Operating activities:
Net earnings	$ 47,235	$ 55,607	$ 18,305
Adjustments to reconcile net earnings to net cash provided by operating activities
Depreciation of fixed assets	49,669	46,781	49,830
Amortization of intangibles and deferred costs	3,454	2,610	3,218
Intangible asset impairment charges	1,010	1,273	0
Losses (Gains) from disposals of property & equipment	220	(231)	(303)
Plant shutdown impairment costs	0	0	6,387
Share-based compensation	4,269	4,199	4,595
Deferred income taxes	8,829	(2,896)	2,622
Loss (Gain) on marketable securities	315	(1,026)	882
Other	(95)	77	296
Changes in assets and liabilities, net of effects from purchase of companies
(Increase) decrease in accounts receivable	(32,778)	(35,755)	14,580
(Increase) decrease in inventories	(49,431)	(14,155)	7,877
(Increase) decrease in prepaid expenses	(9,343)	9,629	(11,366)
Increase (decrease) in accounts payable and accrued	2,708	35,386	(4,780)
Net cash provided by operating activities	26,062	101,499	92,143
Investing activities:
Payments for purchases of companies, net of cash acquired	(221,301)	0	(57,212)
Purchases of property, plant and equipment	(87,291)	(53,578)	(57,817)
Purchases of marketable securities	0	0	(6,103)
Proceeds from redemption and sales of marketable securities	12,026	60,891	73,226
Proceeds from disposal of property and equipment	399	2,435	3,593
Other	0	191	(150)
Net cash (used in) provided by investing activities	(296,167)	9,939	(44,463)
Financing activities:
Payments to repurchase common stock	0	0	(8,972)
Proceeds from issuance of stock	16,160	20,256	7,901
Borrowings under credit facility	125,000	0	0
Repayment of borrowings under credit facility	(70,000)	0	0
Payments for debt issuance costs	(225)	0	0
Payments on finance lease obligations	(279)	(144)	(340)
Payment of cash dividends	(48,437)	(44,785)	(42,053)
Net cash provided by (used in) financing activities	22,219	(24,673)	(43,464)
Effect of exchange rates on cash and cash equivalents	(125)	618	(802)
Net (decrease) increase in cash and cash equivalents	(248,011)	87,383	3,414
Cash and cash equivalents at beginning of period	283,192	195,809	192,395
Cash and cash equivalents at end of period	$ 35,181	$ 283,192	$ 195,809