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FAIR VALUE MEASUREMENTS (Non-Financial Assets Measured on a Non-Recurring Basis) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Dec. 29, 2021
Dec. 23, 2020
Dec. 29, 2021
Dec. 23, 2020
Jun. 30, 2021
Additional Fair Value Elements [Abstract]          
Accumulated amortization associated with definite-lived intangible assets, $ 10.8   $ 10.8   $ 9.6
Schedule of Impairments [Line Items]          
Impairment of goodwill     0.0 $ 0.0  
Restaurant impairment charges $ 0.0 $ 2.5 0.0 2.5  
Liquor Licenses [Member]          
Schedule of Impairments [Line Items]          
Impairment of liquor licenses     $ 0.0 $ 0.0