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EQUITY - Summary of Certain Information Pertaining to Stock Option Awards Outstanding and Exercisable (Details) - Options - $ / shares | 12 Months Ended |
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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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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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