EQUITY-BASED INCENTIVE AWARDS - Restricted Stock Units/Restricted Stock Awards Activity (Details) - $ / shares	12 Months Ended
Sep. 30, 2024	Sep. 30, 2023
Restricted Stock Units
Number of Shares
Nonvested restricted stock units/awards at the beginning of the period (in shares)	6,834
Granted (in shares)	0	0
Vested (in shares)	(6,834)
Nonvested restricted stock units/awards at the end of the period (in shares)	0	6,834
Weighted Average Fair Value
Nonvested restricted stock units/awards at the beginning of the period (in dollars per share)	$ 206.00
Vested (in dollars per share)	$ 195.99
Nonvested restricted stock units/awards at the end of the period (in dollars per share)		$ 206.00
Restricted Stock Awards
Number of Shares
Nonvested restricted stock units/awards at the beginning of the period (in shares)	25,167
Granted (in shares)	15,100
Vested (in shares)	(10,066)
Nonvested restricted stock units/awards at the end of the period (in shares)	30,201	25,167
Weighted Average Fair Value
Nonvested restricted stock units/awards at the beginning of the period (in dollars per share)	$ 206.00
Granted (in dollars per share)	182.89
Vested (in dollars per share)	189.87
Nonvested restricted stock units/awards at the end of the period (in dollars per share)	$ 144.95	$ 206.00

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

+ Details

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

+ Details

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- References

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

+ Details

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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