EQUITY - Schedule of Aggregate Stock Option Activity (Details)	12 Months Ended
Sep. 30, 2021 $ / shares shares
No. of Options
Beginning balance (shares) \| shares	619,225
Granted (in shares) \| shares	183,553
Exercised (shares) \| shares	(234,587)
Ending balance (shares) \| shares	568,191
Exercisable (shares) \| shares	384,638
Wtd. Avg. Exercise Price
Beginning balance (USD per share) \| $ / shares	$ 57.90
Granted (USD per share) \| $ / shares	236.53
Exercised (USD per share) \| $ / shares	51.18
Ending balance (USD per share) \| $ / shares	118.38
Exercisable (USD per share) \| $ / shares	$ 62.00

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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Gross number of share options (or share units) granted during the period.

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

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

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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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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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