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EARNINGS (LOSS) PER COMMON SHARE - Anti-Dilutive Shares Excluded from the Calculation of Diluted Earnings Per Share (Details) - $ / shares shares in Thousands	12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Potentially dilutive shares excluded as anti-dilutive (in shares)	3,894	4,004	3,031
Weighted-average price per share (in dollars per share)	$ 57.23	$ 60.72	$ 63.33

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- Definition

Represents the weighted-average price per share of the shares excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.

+ References

No definition available.

+ Details

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

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- References

No definition available.

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