EQUITY - Summary of Certain Information Pertaining to Stock Option Awards Outstanding and Exercisable (Details) - Options - $ / shares	12 Months Ended
Sep. 30, 2022	Sep. 30, 2021
Awards Outstanding
No. of Options (in shares)	528,471	568,191
Wtd. Avg. Remaining Life (in years)	4 years 4 months 20 days
WTD. Avg. Exercise Price (USD per share)	$ 110.86	$ 118.38
Awards Exercisable
No. of Options (in shares)	388,002
Wtd. Avg. Remaining Life (in years)	2 years 11 months 12 days
WTD. Avg. Exercise Price (USD per share)	$ 65.36
$59.62 - $64.55
Range of Exercise Price
Exercise Price, minimum (USD per share)	59.62
Exercise Price, maximum (USD per share)	$ 64.55
Awards Outstanding
No. of Options (in shares)	380,932
Wtd. Avg. Remaining Life (in years)	2 years 10 months 6 days
WTD. Avg. Exercise Price (USD per share)	$ 62.18
Awards Exercisable
No. of Options (in shares)	380,932
Wtd. Avg. Remaining Life (in years)	2 years 10 months 6 days
WTD. Avg. Exercise Price (USD per share)	$ 62.18
$236.53 - $236.53
Range of Exercise Price
Exercise Price, minimum (USD per share)	236.53
Exercise Price, maximum (USD per share)	$ 236.53
Awards Outstanding
No. of Options (in shares)	147,539
Wtd. Avg. Remaining Life (in years)	8 years 4 months 6 days
WTD. Avg. Exercise Price (USD per share)	$ 236.53
Awards Exercisable
No. of Options (in shares)	7,070
Wtd. Avg. Remaining Life (in years)	8 years 4 months 6 days
WTD. Avg. Exercise Price (USD per share)	$ 236.53

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Weighted average remaining contractual term of exercisable stock options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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