BUSINESS SEGMENT - Revenue and Gross Profit by Segment (Details) $ in Thousands		3 Months Ended
		Dec. 28, 2024 USD ($)	Dec. 30, 2023 USD ($)
Segment Reporting Information [Line Items]
Net sales		$ 2,006,348	$ 1,874,798
Gross profit		$ 167,915	160,840
Number of Reportable Segments		1
Operating Segments
Segment Reporting Information [Line Items]
Gross profit		$ 180,092	164,890
Operating Segments | IMS
Segment Reporting Information [Line Items]
Net sales		1,623,437	1,505,521
Gross profit		127,965	113,800
Operating Segments | CPS
Segment Reporting Information [Line Items]
Net sales		415,685	394,271
Gross profit		52,127	51,090
Intersegment revenue
Segment Reporting Information [Line Items]
Net sales		(32,774)	(24,994)
Unallocated items
Segment Reporting Information [Line Items]
Gross profit	[1]	$ (12,177)	$ (4,050)

[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 and charges resulting from distressed customers.