Business Segment, Geographic and Customer Information - Revenue and a Measure of Segment Gross Profit (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 01, 2023 USD ($)	Apr. 02, 2022 USD ($)	Apr. 01, 2023 USD ($) segment	Apr. 02, 2022 USD ($)
Business Segment, Geographic and Customer Information
Net sales	$ 2,320,103	$ 1,915,070	$ 4,675,911	$ 3,671,396
Gross profit	191,189	146,495	$ 386,575	287,792
Number of reportable segments | segment			1
Operating Segments
Business Segment, Geographic and Customer Information
Gross profit	195,463	149,706	$ 395,324	295,881
Operating Segments | IMS
Business Segment, Geographic and Customer Information
Net sales	1,929,945	1,558,125	3,867,613	2,983,135
Gross profit	144,459	108,660	277,796	215,289
Operating Segments | CPS
Business Segment, Geographic and Customer Information
Net sales	431,077	393,407	889,170	759,685
Gross profit	51,004	41,046	117,528	80,592
Intersegment revenue
Business Segment, Geographic and Customer Information
Net sales	(40,919)	(36,462)	(80,872)	(71,424)
Unallocated items
Business Segment, Geographic and Customer Information
Gross profit	$ (4,274)	$ (3,211)	$ (8,749)	$ (8,089)