Intangible Assets, Net - Components of Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 59,677	$ 57,552
Accumulated Amortization and Impairment	(16,246)	(14,142)
Net Carrying Value	$ 43,431	$ 43,410
Weighted Average Remaining Useful Life (Years)			10 years
Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (Years)	6 years 10 months 24 days	8 years 6 months
503B pharmacy license
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 28,596	$ 28,596
Accumulated Amortization and Impairment	(1,668)	(953)
Net Carrying Value	$ 26,928	$ 27,643
503B pharmacy license | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (Years)	9 years 4 months 24 days	9 years 8 months 12 days
Trade name
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 24,170	$ 24,170
Accumulated Amortization and Impairment	(9,988)	(9,256)
Net Carrying Value	$ 14,182	$ 14,914
Trade name | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (Years)	2 years 10 months 24 days	6 years 6 months
Other
Finite-Lived Intangible Assets [Line Items]
Gross Amount	$ 6,911	$ 4,786
Accumulated Amortization and Impairment	(4,590)	(3,933)
Net Carrying Value	$ 2,321	$ 853
Other | Weighted Average
Finite-Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (Years)	2 years 8 months 12 days	6 years