Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Dec. 30, 2023	Dec. 31, 2022
Cash flows from operating activities
Net income	$ 29,215	$ 42,190
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation and amortization	19,141	16,290
Share-based compensation expense and related charges	5,178	5,683
Other, net	443	502
Changes in operating assets and liabilities, excluding impacts of currency:
Accounts receivable	9,432	10,506
Contract assets	10,732	19,745
Inventories	(5,057)	(31,409)
Other current and non-current assets	(3,988)	(7,270)
Accrued income taxes payable	(275)	(2,655)
Accounts payable	6,024	(52,702)
Advanced payments from customers	(52,721)	(24,530)
Other current and non-current liabilities	(21,153)	(25,144)
Cash flows used in operating activities	(3,029)	(48,794)
Cash flows from investing activities
Payments for property, plant and equipment	(28,656)	(23,085)
Other, net	65	1,503
Cash flows used in investing activities	(28,591)	(21,582)
Cash flows from financing activities
Borrowings under debt agreements	133,000	197,000
Payments on debt and finance lease obligations	(124,328)	(142,001)
Repurchases of common stock	0	(11,470)
Proceeds from exercise of stock options	182	0
Payments related to tax withholding for share-based compensation	(3,091)	(4,091)
Cash flows provided by financing activities	5,763	39,438
Effect of exchange rate changes on cash and cash equivalents	1,615	3,379
Net decrease in cash and cash equivalents and restricted cash	(24,242)	(27,559)
Cash and cash equivalents and restricted cash:
Beginning of period	256,654	275,470
End of period	$ 232,412	$ 247,911