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v3.23.3

Equity - Common Stock Share Activity (Details) - shares | 12 Months Ended
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Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance - shares Issued (in shares) | 220,000 | 220,000 | 0
UGI Series Preference Stock outstanding (in shares) | 0 |  |
Shares issued - beginning balance (in shares) | 210,560,494 |  |
Ending balance - shares Issued (in shares) | 220,000 | 220,000 | 220,000
Ending balance - shares outstanding (in shares) | 0 | 0 |
Shares issued - ending balance (in shares) | 210,906,052 | 210,560,494 |
Preferred Stock |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
UGI Series Preference Stock outstanding (in shares) | 220,000 | 220,000 | 0
Equity Unit offering (in shares) |  |  | 220,000
Ending balance - shares Issued (in shares) | 220,000 |  |
Ending balance - shares outstanding (in shares) | 220,000 | 220,000 | 220,000
Common Stock |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Shares issued - beginning balance (in shares) | 210,560,494 | 209,843,296 | 209,514,044
Beginning balance - shares Outstanding (in shares) | 209,582,212 | 209,216,135 | 208,354,438
Employee and director plans - shares Issued/Treasury (in shares) | 345,558 | 717,198 | 329,252
Employee and director plans - shares Outstanding (in shares) | 512,871 | 1,516,350 | 883,567
Repurchases of common stock - Treasury (in shares) | (600,000) | (900,000) | 0
Reacquired common stock – employee and director plans (in shares) |  | (250,273) | (21,870)
Shares issued - ending balance (in shares) | 210,906,052 | 210,560,494 | 209,843,296
Ending balance - shares Outstanding (in shares) | 209,495,083 | 209,582,212 | 209,216,135
Common Stock | Treasury stock |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |
Beginning balance - treasury shares (in shares) | (978,282) | (627,161) | (1,159,606)
Employee and director plans - shares Issued/Treasury (in shares) | 167,313 | 799,152 | 554,315
Repurchases of common stock - Treasury (in shares) | (600,000) | (900,000) |
Reacquired common stock – employee and director plans (in shares) |  | (250,273) | (21,870)
Ending balance - treasury shares (in shares) | (1,410,969) | (978,282) | (627,161)

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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.6-05(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-13 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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