CONTINGENCIES (Additional Information) (Details) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended	21 Months Ended
	Dec. 25, 2019 USD ($) LegalMatter	Dec. 26, 2018 USD ($)	Dec. 25, 2019 USD ($) LegalMatter	Dec. 26, 2018 USD ($)	Jun. 26, 2019 USD ($)	Dec. 25, 2019 USD ($) LegalMatter
Loss Contingencies [Line Items]
Letters of credit outstanding, amount	$ 27.2		$ 27.2			$ 27.2
Cyber security incident charges	$ 0.0	$ 0.0	$ 0.0	$ 0.4
Loss contingency, pending claims, number | LegalMatter	0		0			0
Cyber security incident [Member]
Loss Contingencies [Line Items]
Loss contingency insurance coverage deductible			$ 2.0
Cyber security incident charges					$ 0.4	$ 4.3
Insurance Recoveries			1.0
Loss contingency, receivable	$ 0.9		0.9			0.9
Loss contingency, estimate of possible loss	$ 5.0		$ 5.0			$ 5.0