XML 29 R66.htm IDEA: XBRL DOCUMENT v3.20.1
Derivative Instruments and Hedging Activities - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Mar. 31, 2020
Mar. 31, 2019
Sep. 30, 2019
Oct. 25, 2018
Derivative [Line Items]            
Potential exposure coverage, percent $ 3,500,000   $ 3,500,000      
Pre-tax losses associated with net investment hedges 11,900,000 $ 16,400,000 (8,500,000) $ 10,300,000    
Interest Rate Protection Agreements            
Derivative [Line Items]            
Notional amount $ 0 $ 0 $ 0 $ 0 $ 0  
Foreign Exchange Forward            
Derivative [Line Items]            
International local currency earnings before income taxes 90.00%   90.00%      
UGI International LLC | 3.25% Senior Unsecured Notes Due November 2025 | Senior Notes            
Derivative [Line Items]            
Stated interest rate           3.25%