Statistical Measurement [Domain] Statistical Measurement [Domain] Related Party and Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Interest on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Document Information [Line Items] Document Information [Line Items] Maximum loan EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Participants' contributions receivable EBP, Participant Contribution, Receivable Employers' contributions receivable EBP, Contribution [Policy Text Block] EBP, Description of Plan and Accounting Change [Abstract] Investment Type [Axis] Investment Type [Axis] Excess Contributions Payable EBP, Excess Contribution Payable [Policy Text Block] Participants’ rollover contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum borrowing, to total account, percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Number of Shares/Units (in shares) EBP, Investment, Number of Shares Federal Income Tax Status EBP, Tax Status [Text Block] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type Quarterly recordkeeping fee EBP, Quarterly Administrative Fee EBP, Quarterly Administrative Fee Total liabilities EBP, Liability EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Dividends and interest EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment Schedule of Related Party Transactions EBP, Related Party and Party-in-Interest Transactions [Table Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Participant loan, current value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Total contributions into UGI Common Stock EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] Minimum loan EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Accrued administrative expenses EBP, Accrued Expense Mutual funds Money Market Funds [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Distributions to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Employers' contributions receivable EBP, Employer Contribution, Receivable Participants’ contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Payment of Benefits and Transfers of Participants’ Balances EBP, Payment to Participant [Policy Text Block] Net assets available for benefits Net assets available for benefits—beginning of year Net assets available for benefits—end of year EBP, Net Asset Available for Benefit 25% match EBP, Employer Matching Contribution, Pension, Second Tranche [Member] EBP, Employer Matching Contribution, Pension, Second Tranche EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Total assets EBP, Asset Final maturity maximum EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term UGI Common Stock EBP, Employer, Common Stock [Member] Automatic deferral rate EBP, Participant Contribution, Automatic, Deferral Rate Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Tax Status [Abstract] Net increase EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Cover [Abstract] Maximum Maximum [Member] Employers’ contributions EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash ASSETS: EBP, Asset [Abstract] Pretax, maximum annual compensation to total compensation, percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Minimum Minimum [Member] Basis spread on variable rate EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Dividend income EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment EBP, Schedule of Asset Held for Investment [Abstract] Entity [Domain] Entity [Domain] Total – all funds EBP, Asset Held for Investment Investment, Identifier [Axis] Investment, Identifier [Axis] Net transfers EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan EBP, Investment, Fair Value and NAV [Abstract] Matching percentage of eligible compensation EBP, Employer Contribution, Matching Percentage Basis of Accounting EBP, Basis of Accounting [Policy Text Block] Involuntary cash-out limit EBP, Involuntary Cash-out Limit EBP, Involuntary Cash-out Limit Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Total Mutual Funds Mutual Fund [Member] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Amendment Flag Amendment Flag Administrative fees EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Common collective trust funds Common Collective Trust [Member] Other Fair Value Measured at Net Asset Value Per Share [Member] Investments at Fair Value EBP, Investment, Fair Value and NAV [Table Text Block] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Total sales at market value related to UGI Common Stock EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Related Party and Party-in-Interest Transactions [Abstract] Forfeitures remaining EBP, Forfeited Nonvested Account EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] Redemption Notice Period EBP, Fair Value, Investment, NAV, Redemption, Notice Period Forfeitures used to reduce the Employers’ contributions EBP, Forfeited Nonvested Account, Decrease from Employer Contribution EBP, Statement of Net Asset Available for Benefit [Abstract] Description of the Plan EBP, Description of Plan [Text Block] Accounting Policies EBP, Summary of Accounting Policy [Text Block] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Entity Central Index Key Entity Central Index Key Participant loan interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate Investments (Note 3) Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Legal Entity [Axis] Legal Entity [Axis] Entity tax identification number Entity Tax Identification Number Collective investment trust fund EBP, Pooled Separate Account [Member] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] 100% match EBP, Employer Matching Contribution, Nonpension [Member] EBP, Employer Matching Contribution, Nonpension Plan number EBP, Plan Number Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Maximum outstanding loans EBP, Note Receivable From Participant, General Loan, Maximum Number EBP, Note Receivable From Participant, General Loan, Maximum Number Use of Estimates EBP, Use of Estimate [Policy Text Block] 50% match EBP, Employer Matching Contribution, Prior Mountaineer Gas Company Employees [Member] EBP, Employer Matching Contribution, Prior Mountaineer Gas Company Employees Statistical Measurement [Axis] Statistical Measurement [Axis] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Dividends receivable EBP, Asset Held For Investment, Investment Income, Dividends Receivable EBP, Asset Held For Investment, Investment Income, Dividends Receivable Notes receivable from participants Loan principal outstanding (4.25% – 9.50%), maturing through 2037 EBP, Note Receivable from Participant Level 2 Fair Value, Inputs, Level 2 [Member] Schedule H, Line 4(i)—SCHEDULE OF ASSETS (HELD AT END OF YEAR) EBP, Schedule of Asset Held for Investment [Table Text Block] Additions: EBP, Change in Net Asset Available for Benefit, Increase [Abstract] Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Investments [Domain] Investments [Domain] Brokerage Link EBP, Self-Directed Brokerage Account [Member] Document Information [Table] Document Information [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Excess contributions payable EBP, Excess Contribution Payable 50% match EBP, Employer Matching Contribution, Pension, First Tranche [Member] EBP, Employer Matching Contribution, Pension, First Tranche EBP 008 EBP 008 [Member] EBP 008 Level 1 Fair Value, Inputs, Level 1 [Member] Entity Registrant Name Entity Registrant Name Forfeited participants’ accounts EBP, Forfeited Nonvested Account, During Period EBP, Forfeited Nonvested Account, During Period Investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investments in UGI Common Stock limit EBP, Investment, Employer, Common Stock, to Total Asset, Percentage EBP, Tax Status [Table] EBP, Tax Status [Table] Original cost of UGI Common Stock held by the Plan EBP, Investment, Excluding Plan Interest in Master Trust, Cost LIABILITIES: EBP, Liability [Abstract] Receivables: EBP, Receivable [Abstract] Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Employers' matching contribution percent EBP, Employer Contribution, Participant Compensation Matched, Percentage