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v3.23.1

Stockholders' Equity (Changes in Non-vested Stock Options) (Details) - $ / shares shares in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2023 | Mar. 31, 2023
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Weighted-Average Grant Date Fair Value Per Share, Ending balance | $ 31.39 | $ 31.39
Stock Options [Member] |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |
Number of Options, Beginning balance | 1,751 | 1,812
Granted, Number of options | 4 | 522
Exercised, Number of options | shares | (65) | (642)
Forfeited, Number of options | (15) | (17)
Number of Options, Ending balance | 1,675 | 1,675
Weighted-Average Grant Date Fair Value Per Share, Beginning balance | $ 30.98 | $ 30.03
Granted, Weighted-Average Grant Date Fair Value Per Share | 40.23 | 33.67
Exercised, Weighted-Average Grant Date Fair Value Per Share | 22.13 | 29.07
Forfeited, Weighted-Average Grant Date Fair Value Per Share | $ 32.89 | $ 33.23

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- Definition Gross number of share options (or share units) granted during the period. + 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)(iv)(01) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + 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 (d)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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