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Debt - Narrative (Details)
Mar. 06, 2020
USD ($)
Apr. 16, 2020
USD ($)
Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 260,000,000  
Potential increase in the loan commitments amount $ 325,000,000  
Debt interest rate, floor 1.00%  
Debt instrument, covenant, total indebtedness to EBITDA ratio, maximum 4.00  
Debt instrument, covenant, EBITDA to interest expense ratio, maximum 3.50  
Minimum | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 0.75%  
Maximum | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 2.75%  
Letter of Credit | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Maximum borrowing capacity $ 50,000,000  
Federal fund rate | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 0.50%  
London Interbank Offered Rate (LIBOR) | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.00%  
Alternate Base Rate and Adjusted LIBOR | Minimum | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 1.50%  
Alternate Base Rate and Adjusted LIBOR | Maximum | Energy Services | Line of Credit | Energy Services Credit Agreement    
Debt Instrument [Line Items]    
Basis spread on variable rate 2.50%  
Subsequent Event | UGI Utilities | Senior Notes | 3.12% Senior Notes due April 2050    
Debt Instrument [Line Items]    
Debt instrument, face amount   $ 150,000,000
Stated interest rate   3.12%
Debt instrument, covenant, consolidated debt to consolidated total capital   0.65