Selected Account Information - Reconciliation of Goodwill (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Jun. 30, 2023
Goodwill [Roll Forward]
Beginning balance, Gross				$ 88,921
Beginning balance, Accumulated Impairment				21,154
Beginning balance, Net				67,767
Acquisitions, Gross				12,769
Acquisitions, Accumulated Impairment				0
Acquisitions, Net				12,769
Impairment, Gross				0
Impairment, Accumulated Impairment				1,852
Impairment, Net	$ (1,200)	$ (662)	$ (400)	(1,852)
Ending balance, Gross	101,690			101,690
Ending balance, Accumulated Impairment	23,006			23,006
Ending balance, Net	$ 78,684			$ 78,684