Accounts and Financing Receivables (Roll-forward of Allowances for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Jun. 30, 2026
Accounts
Beginning balance	$ 59,018	$ 46,441	$ 46,441
Write-offs	(22,640)	(12,119)
Recoveries	2,863	3,220
Provision for credit losses	22,222	14,477
Ending balance	61,463	52,019	59,018
Financing
Beginning balance	9,851	11,394	11,394
Write-offs	(979)	(968)	(4,175)
Recoveries	165	285
Provision for credit losses	180	406
Ending balance	9,217	11,117	9,851
Allowance for credit losses
Beginning balance	68,869	57,835	57,835
Write-offs	(23,619)	(13,087)
Recoveries	3,028	3,505
Provision for credit losses	22,402	14,883
Ending balance	$ 70,680	$ 63,136	$ 68,869