BUSINESS SEGMENT, GEOGRAPHIC AND CUSTOMER INFORMATION - Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended		6 Months Ended
		Mar. 30, 2024 USD ($)	Apr. 01, 2023 USD ($)	Mar. 30, 2024 USD ($)	Apr. 01, 2023 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 1,834,595	$ 2,320,103	$ 3,709,393	$ 4,675,911
Gross profit		154,757	191,189	$ 315,597	386,575
Number of Reportable Segments				1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		163,125	195,463	$ 328,015	395,324
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,461,189	1,929,945	2,966,710	3,867,613
Gross profit		111,950	144,459	225,750	277,796
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		398,067	431,077	792,338	889,170
Gross profit		51,175	51,004	102,265	117,528
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(24,661)	(40,919)	(49,655)	(80,872)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (8,368)	$ (4,274)	$ (12,418)	$ (8,749)

[1] For purposes of evaluating segment performance, management excludes certain items from its measures of gross profit. These items consist of stock-based compensation expense, litigation settlements, charges or credits resulting from distressed customers and amortization of intangible assets.