Supplemental Consolidated Financial Information - Supplemental of Consolidated Statements of Cash Flows Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Supplemental disclosure of cash flow information
Cash and cash equivalents at beginning of period	$ 170,513	$ 220,595
Restricted cash at beginning of period	9,294	8,373
Cash and cash equivalents and restricted cash at beginning of period	179,807	228,968
Cash and cash equivalents at end of period	174,506	218,516
Restricted cash at end of period	9,386	8,470
Cash and cash equivalents and restricted cash at end of period	183,892	226,986
Non-cash investing and financing activities:
Pawn loans forfeited and transferred to inventory	109,219	96,472
Accrued acquisition consideration	$ 0	$ 37