Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES:
Net income	$ 58,634	$ 48,021
Adjustments to reconcile net income to cash provided by (used in) operating activities:
Depreciation and amortization	27,465	27,635
Stock-based compensation expense	9,032	8,208
Deferred income taxes	6,707	3,447
Other, net	(3,638)	(99)
Changes in operating assets and liabilities, net of amounts acquired:
Accounts receivable	(106,972)	(64,217)
Contract assets	(15,666)	46,534
Inventories	(207,300)	42,282
Prepaid expenses and other assets	(2,939)	(9,400)
Accounts payable	234,525	(66,657)
Accrued liabilities	68,452	26,057
Cash provided by operating activities	68,300	61,811
CASH FLOWS PROVIDED BY (USED IN) INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(25,376)	(11,343)
Proceeds from Sale of Property, Plant, and Equipment	8,014	152
Cash used in investing activities	(17,362)	(11,191)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Repayment of Long-term Debt, Long-term Lease Obligation, and Capital Security	(4,688)	(4,688)
Proceeds from revolving credit facility borrowings	16,000	331,300
Repayments of revolving credit facility borrowings	(16,000)	(331,300)
Net proceeds from stock issuances	1,050	1,050
Repurchases of common stock	(68,823)	(12,522)
Cash used in financing activities	(72,461)	(16,160)
Effect of exchange rate changes	(786)	1,044
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(22,309)	35,504
Cash and cash equivalents at beginning of period	650,026	480,526
Cash and cash equivalents at end of period	627,717	516,030
Cash paid during the period for:
Interest, net of capitalized interest	2,479	1,096
Income taxes, net of refunds	5,569	5,205
Unpaid purchases of property, plant and equipment at the end of period	$ 17,431	$ 11,635