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Segment Information - Summary of Revenue and Income from Operations of Reportable Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue:
Revenue	$ 666,328	$ 498,304	$ 1,600,947	$ 1,110,951
Income from operations:
Income from operations	80,908	48,615	165,761	73,963
Operating Segments [Member] | Retail Operations [Member]
Revenue:
Revenue	656,826	498,304	1,591,445	1,110,951
Income from operations:
Income from operations	79,988	$ 48,615	164,841	$ 73,963
Operating Segments [Member] | Product Manufacturing [Member]
Revenue:
Revenue	20,417		20,417
Income from operations:
Income from operations	3,521		3,521
Elimination of Intersegment [Member]
Revenue:
Revenue	(10,915)		(10,915)
Income from operations:
Income from operations	$ (2,601)		$ (2,601)

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