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INCOME TAXES (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended	9 Months Ended
INCOME TAXES (Details) - USD ($) $ in Millions	Jul. 20, 2026	Sep. 27, 2026	Sep. 28, 2025	Jun. 28, 2026	Sep. 27, 2026	Sep. 28, 2025
Income Tax Disclosure [Abstract]
Income tax (benefit) expense		$ (0.1)	$ 13.4		$ 0.3	$ 9.6
Effective income tax rate		0.30%	(197.10%)		(0.60%)	184.60%
Changes in statutory state tax rate		$ 0.3			$ 0.2
Long-term accrued expenses and other		$ 19.8		$ 24.0
Surviving Corporation
Business Combination [Line Items]
Implementation agreement, payment to Continuing Stockholders for termination of TRA	$ 44.0
Surviving Corporation \| Utz Brands Holdings, LLC
Business Combination [Line Items]
Implementation agreement, ownership percentage	50.00%