Goodwill And Intangible Assets (Schedule Of Intangible Assets) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021	Apr. 30, 2021
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 1,037,262	$ 1,036,196	$ 1,031,841
Accumulated Amortization	(727,618)	(685,103)	(671,693)
Net	309,644	351,093	360,148
Reacquired franchise rights
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	379,114	370,405	370,112
Accumulated Amortization	(197,068)	(182,366)	(179,356)
Net	182,046	188,039	190,756
Customer relationships
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	331,020	316,547	316,508
Accumulated Amortization	(278,717)	(255,294)	(251,160)
Net	52,303	61,253	65,348
Internally-developed software
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	137,638	160,315	156,308
Accumulated Amortization	(107,111)	(119,460)	(116,126)
Net	30,527	40,855	40,182
Noncompete agreements
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	41,789	41,228	41,212
Accumulated Amortization	(37,684)	(35,802)	(35,484)
Net	4,105	5,426	5,728
Franchise agreements
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	19,201	19,201	19,201
Accumulated Amortization	(17,388)	(16,108)	(15,894)
Net	1,813	3,093	3,307
Purchased technology
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	122,700	122,700	122,700
Accumulated Amortization	(87,910)	(74,913)	(72,609)
Net	34,790	47,787	50,091
Trade name
Goodwill and Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	5,800	5,800	5,800
Accumulated Amortization	(1,740)	(1,160)	(1,064)
Net	$ 4,060	$ 4,640	$ 4,736