v3.26.3
Derivative instruments and hedging activities - AOCI Rollforward (Details)
$ in Thousands, MMBbls in Millions
 12 Months Ended
Jul. 31, 2026
USD ($)
MMBbls
Jul. 31, 2025
USD ($)
Jul. 31, 2024
USD ($)
Derivative instruments and hedging activities      
Partners' capital balance $ (1,029,128) $ (949,688) $ (898,791)
Change in value of risk management commodity derivatives (14,677) 6,258 3,448
Reclassification of losses (gains) on commodity hedges to cost of sales - propane and other gas liquids sales, net 10,662 (8,400) (2,472)
Partners' capital balance (1,129,684) (1,029,128) (949,688)
Reclassification of net losses to earnings during next 12 months (3,800)    
Gain (loss) on discontinuation of cash flow hedge due to forecasted transaction probable of not occurring, net $ 0 0 0
Number of barrels of propane covered by cash flow hedges | MMBbls 3.4    
Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest      
Derivative instruments and hedging activities      
Partners' capital balance $ (83) 2,059 1,083
Change in value of risk management commodity derivatives (14,677) 6,258 3,448
Reclassification of losses (gains) on commodity hedges to cost of sales - propane and other gas liquids sales, net 10,662 (8,400) (2,472)
Partners' capital balance (4,098) (83) 2,059
Ferrellgas, L.P.      
Derivative instruments and hedging activities      
Partners' capital balance (1,028,919) (950,011) (898,851)
Change in value of risk management commodity derivatives (14,677) 6,258 3,448
Reclassification of losses (gains) on commodity hedges to cost of sales - propane and other gas liquids sales, net 10,662 (8,400) (2,472)
Partners' capital balance (1,126,968) (1,028,919) (950,011)
Ferrellgas, L.P. | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest      
Derivative instruments and hedging activities      
Partners' capital balance (95) 2,025 1,059
Change in value of risk management commodity derivatives (14,677) 6,258 3,448
Reclassification of losses (gains) on commodity hedges to cost of sales - propane and other gas liquids sales, net 10,662 (8,400) (2,472)
Less: amount attributable to noncontrolling interests (40) (22) 10
Partners' capital balance $ (4,070) $ (95) $ 2,025