INCOME TAXES ((Benefit) Provision For Income Taxes and Effective Tax Rate) (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 28, 2023	Jun. 29, 2022	Jun. 30, 2021
Current income tax (benefit) expenses:
Federal	$ 12.2	$ 5.8	$ 11.6
State	6.8	3.7	14.4
Foreign	0.2	(0.3)	0.0
Total current income tax expenses	19.2	9.2	26.0
Deferred income tax (benefit) expenses:
Federal	(29.5)	(15.7)	(9.4)
State	(2.0)	3.7	(3.0)
Foreign	0.5	0.4	0.0
Total deferred income tax (benefit) expenses	(31.0)	(11.6)	(12.4)
(Benefit) Provision for income taxes	$ (11.8)	$ (2.4)	$ 13.6	[1]
Effective tax rate	(13.00%)	(2.10%)	9.40%

[1] Fiscal 2021, which ended on June 30, 2021, contained 53 weeks. The impact of the 53rd week in fiscal 2021 resulted in an increase in Total revenues. While certain expenses increased in direct relationship to additional revenues from the 53rd week, other expenses, such as fixed costs, are incurred on a calendar month basis.