SEGMENT INFORMATION - Schedule of Segment Information of Capital Expenditures and Assets (Details) - USD ($) $ in Thousands	6 Months Ended
Mar. 27, 2026	Mar. 28, 2025	Sep. 30, 2025
Segment Reporting Information [Line Items]
Capital Expenditures	$ 26,226	$ 63,635
Total Assets	2,848,376	2,851,922	$ 2,851,922
Operating Segments \| Electrical
Segment Reporting Information [Line Items]
Capital Expenditures	14,366	30,877
Total Assets	1,497,298	1,456,834
Operating Segments \| Safety & Infrastructure
Segment Reporting Information [Line Items]
Capital Expenditures	8,987	19,465
Total Assets	660,810	721,156
Unallocated
Segment Reporting Information [Line Items]
Capital Expenditures	2,873	13,293
Total Assets	$ 690,268	$ 673,932

Amount of asset recognized for present right to economic benefit.

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+ Details