BUSINESS SEGMENT, GEOGRAPHIC AND CUSTOMER INFORMATION - Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended
		Dec. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 1,874,798	$ 2,355,808
Gross profit		$ 160,840	195,386
Number of Reportable Segments		1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		$ 164,890	199,861
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,505,521	1,937,668
Gross profit		113,800	133,337
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		394,271	458,093
Gross profit		51,090	66,524
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(24,994)	(39,953)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (4,050)	$ (4,475)

[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 and amortization of intangible assets.