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Consolidated Statements of Shareholders' Equity (Parentheticals) - $ / shares | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Common stock, dividends per share declared (in dollars per share) | $ 3.14 | $ 3.02 | $ 2.88
Preferred stock dividends per share declared (in dollars per share) | $ 1.475 | $ 1.475 | $ 1.475

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
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- Definition Aggregate dividends declared during the period for each share of preferred stock outstanding. + References No definition available. + Details
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