Supplemental Consolidated Financial Information - Supplemental of Consolidated Statements of Cash Flows Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023	Sep. 30, 2022
Supplemental disclosure of cash flow information
Cash and cash equivalents	$ 218,516	$ 207,658	$ 220,595	$ 206,028
Restricted cash	8,470	8,359	8,373	8,341
Total cash and cash equivalents and restricted cash	226,986	216,017	$ 228,968	$ 214,369
Non-cash investing and financing activities:
Pawn loans forfeited and transferred to inventory	96,472	84,851
Transfer of equity consideration for acquisition	0	99
Acquisition earn-out contingency	0	2,000
Accrued acquisition consideration	$ 37	$ 1,250