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Fair Value Measurements - Summary of Carrying Value and Fair Value of Mortgage Facilities and Term Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Fair Value [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	$ 5,859	$ 6,027
Fair Value [Member] | Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	16,847	17,223
Fair Value [Member] | Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	23,097	24,171
Fair Value [Member] | Term Loan Payable to M&T Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	352,310	379,650
Carrying Value [Member] | Mortgage Facility Payable to Flagship Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	5,659	5,907
Carrying Value [Member] | Mortgage Facility Payable to Seacoast National Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	16,056	16,735
Carrying Value [Member] | Mortgage Facility Payable to Hancock Whitney Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	22,322	23,279
Carrying Value [Member] | Term Loan Payable to M&T Bank [Member]
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Mortgage facility and term loan payable	$ 362,500	$ 377,500

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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