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Segment Information - Summary of Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
Revenue:
Revenue	$ 2,431,008	$ 2,394,706	$ 2,308,098
Income from operations:
Income from operations	128,226	200,802	265,204
Operating Segments [Member] | Retail Operations [Member]
Revenue:
Revenue	2,417,941	2,294,362	2,212,922
Income from operations:
Income from operations	122,863	192,487	249,186
Operating Segments [Member] | Product Manufacturing [Member]
Revenue:
Revenue	154,753	222,289	176,273
Income from operations:
Income from operations	431	23,420	20,258
Intersegment adjustments [Member]
Revenue:
Revenue	(141,686)	(121,945)	(81,097)
Income from operations:
Income from operations	$ 4,932	$ (15,105)	$ (4,240)

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