Debt - Restrictive Covenants (Details)	Sep. 30, 2019
UGI Utilities | 2019 Credit Agreement
Debt Instrument
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
Maximum ratio of Total Indebtedness to EBITDA	3.85
Term Loan | Energy Services | Line of Credit | Energy Services Credit Agreement
Debt Instrument
Maximum ratio of Total Indebtedness to EBITDA	3.50
Consolidated EBITDA to debt service, minimum	1.10
Minimum ratio of EBITDA to interest expense	3.50
Consolidated net indebtedness to consolidated EBITDA, during acquisition period, maximum	4.00
Term Loan | UGI Corporation | Line of Credit | The UGI Corporation Senior Credit Facility
Debt Instrument
Maximum ratio of Total Indebtedness to EBITDA	4.50
Consolidated net indebtedness to consolidated EBITDA, during acquisition period, maximum	4.875
EBITDA to consolidated interest expense ratio, maximum	3.50
Total indebtedness to EBITDA Ratio, final ratio, maximum	4.00
Consolidated net indebtedness to consolidated EBITDA, during acquisition period, final ratio, maximum	4.50