Organization and Summary of Significant Accounting Policies - Merchandise Sales Revenue Recognition (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Sep. 30, 2025	Jun. 30, 2025
Accounting Policies [Abstract]
Customer layaway deposits	$ 42,534	$ 33,901	$ 33,336

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 210
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Topic 606
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-Topic 606
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