Goodwill and Intangible Assets - Goodwill by Reportable Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024
Goodwill [Roll Forward]
Beginning balance	$ 4,154,844	$ 4,084,705
Goodwill acquired	849,024	69,407
Foreign currency translation	17,937	732
Ending balance	5,021,805	4,154,844
Domestic | Operating segments
Goodwill [Roll Forward]
Beginning balance	3,974,823	3,940,064
Goodwill acquired	798,885	34,681
Foreign currency translation	(297)	78
Ending balance	4,773,411	3,974,823
International | Operating segments
Goodwill [Roll Forward]
Beginning balance	180,021	144,641
Goodwill acquired	50,139	34,726
Foreign currency translation	18,234	654
Ending balance	$ 248,394	$ 180,021