Debt - Restrictive Covenants (Details)	Sep. 30, 2020
UGI Utilities | 2019 Credit Agreement
Debt Instrument [Line Items]
Ratio of consolidated debt to consolidated total capital, maximum	0.65
Revolving Credit Facility | UGI International LLC | Line of Credit | UGI International Credit Agreement
Debt Instrument [Line Items]
Maximum ratio of Total Indebtedness to EBITDA	3.85
Term Loan | Energy Services | Line of Credit | Energy Services Credit Agreement
Debt Instrument [Line Items]
Maximum ratio of Total Indebtedness to EBITDA	4.00
Consolidated EBITDA to debt service, minimum	1.10
EBITDA to consolidated interest expense ratio, maximum	3.50
Term Loan | UGI Corporation | Line of Credit | The UGI Corporation Senior Credit Facility
Debt Instrument [Line Items]
Maximum ratio of Total Indebtedness to EBITDA	4.50
EBITDA to consolidated interest expense ratio, maximum	3.50
Total indebtedness to EBITDA Ratio, final ratio, maximum	4.00