DEBT - Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 26, 2026	Sep. 30, 2025
Debt Instrument [Line Items]
Deferred financing costs	$ (8,788)	$ (10,096)
Total debt	760,228	760,532
Less: Current portion	3,730	3,730
Long-term debt	756,498	756,802
Secured Debt \| ABL Credit Facility
Debt Instrument [Line Items]
Carrying value	0	0
Secured Debt \| Senior Secured Term Loan Facility due September 29, 2032
Debt Instrument [Line Items]
Carrying value	369,016	370,628
Secured Debt \| Senior Notes due June 2031
Debt Instrument [Line Items]
Carrying value	$ 400,000	$ 400,000

Long-Term Debt, Net Of Unamortized Discount

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