GOODWILL AND INTANGIBLE ASSETS (Schedule of Intangible Assets) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,073,531	$ 1,067,824
Accumulated Amortization	(806,019)	(790,781)
Net	267,512	277,043
Reacquired franchise rights
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	394,535	392,452
Accumulated Amortization	(216,277)	(212,495)
Net	178,258	179,957
Customer relationships
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	355,271	351,695
Accumulated Amortization	(306,460)	(301,062)
Net	48,811	50,633
Internally-developed software
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	133,273	133,380
Accumulated Amortization	(123,220)	(120,054)
Net	10,053	13,326
Noncompete agreements
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	42,751	42,596
Accumulated Amortization	(40,097)	(39,617)
Net	2,654	2,979
Franchise agreements
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	19,201	19,201
Accumulated Amortization	(19,068)	(18,668)
Net	133	533
Purchased technology
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	122,700	122,700
Accumulated Amortization	(98,432)	(96,565)
Net	24,268	26,135
Trade name
Goodwill and Intangible Assets [Line Items]
Gross Carrying Amount	5,800	5,800
Accumulated Amortization	(2,465)	(2,320)
Net	$ 3,335	$ 3,480