Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net income	$ 256,121	$ 268,998	$ 139,713
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation and amortization	108,783	109,656	114,218
Stock-based compensation expense	39,608	34,976	26,235
Deferred income taxes	31,733	33,724	13,567
Goodwill impairment	1,848	0	8,409
Loss (Gain) on sale of intellectual property	7,000	(15,000)	0
Gain on liquidation of foreign entity	0	(8,263)	0
Other, net	1,260	(1,371)	(239)
Changes in operating assets and liabilities:
Accounts receivable	46,480	(146,516)	83,623
Contract assets	(154,933)	47,842	(283)
Inventories	(663,379)	(167,186)	39,564
Prepaid expenses and other assets	(31,700)	(6,486)	17,798
Accounts payable	554,492	236,270	(106,640)
Accrued liabilities	133,541	(48,302)	(35,410)
Cash provided by operating activities	330,854	338,342	300,555
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(138,639)	(73,296)	(65,982)
Proceeds from sales of property, plant and equipment	8,425	1,084	1,573
Purchases of investments	(2,000)	(2,705)	(30,000)
Sale of investments	0	0	30,000
Cash paid for business acquisition, net of cash acquired	0	(21,408)	0
Proceeds from sale of intellectual property	0	5,000	0
Cash used in investing activities	(132,214)	(91,325)	(64,409)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Proceeds from revolving credit facility borrowings	1,874,000	399,600	1,909,000
Repayments of revolving credit facility borrowings	(1,874,000)	(399,600)	(1,909,000)
Repayments of long-term debt	(332,814)	(18,752)	(39,048)
Proceeds from issuance of long-term debt	350,000	0	0
Debt issuance costs	(3,263)	0	0
Net proceeds from stock issuances	2,379	2,993	7,793
Repurchases of common stock	(331,101)	(64,059)	(179,025)
Proceeds from collection of notes receivable	500	2,500	0
Cash used in financing activities	(314,299)	(77,318)	(210,280)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations	(4,510)	(199)	(81)
Increase (decrease) in cash and cash equivalents	(120,169)	169,500	25,785
Cash and cash equivalents at beginning of year	650,026	480,526	454,741
Cash and cash equivalents at end of year	529,857	650,026	480,526
Cash paid during the year:
Interest, net of capitalized interest	18,243	15,264	20,477
Income taxes, net of refunds	48,131	33,358	30,700
Noncash Investing and Financing Items:
Unpaid purchases of property, plant and equipment at end of period	$ 38,570	$ 20,929	$ 12,371