SEGMENT INFORMATION -Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 27, 2026	Mar. 28, 2025	Mar. 27, 2026	Mar. 28, 2025
Segment Reporting Information [Line Items]
Net sales	$ 731,377	$ 701,725	$ 1,386,925	$ 1,363,322
Electrical
Segment Reporting Information [Line Items]
Net sales	532,452	492,670	1,001,998	958,025
Safety & Infrastructure
Segment Reporting Information [Line Items]
Net sales	198,925	209,055	384,927	405,297
Operating Segments
Segment Reporting Information [Line Items]
Adjusted EBITDA	91,654	127,007	176,943	234,973
Operating Segments \| Electrical
Segment Reporting Information [Line Items]
Net sales	532,457	492,677	1,002,011	958,031
Adjusted EBITDA	74,351	90,943	129,453	183,330
Operating Segments \| Safety & Infrastructure
Segment Reporting Information [Line Items]
Adjusted EBITDA	17,303	36,064	47,490	51,643
Intersegment Sales
Segment Reporting Information [Line Items]
Net sales	(180)	(225)	(438)	(707)
Intersegment Sales \| Electrical
Segment Reporting Information [Line Items]
Net sales	5	7	13	7
Intersegment Sales \| Safety & Infrastructure
Segment Reporting Information [Line Items]
Net sales	$ 175	$ 218	$ 425	$ 700

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details