CONDENSED CONSOLIDATED STATEMENT OF EQUITY (DEFICIT) - USD ($)	Ferrellgas, L.P Limited Partner Unitholders	Ferrellgas, L.P General Partner	Ferrellgas, L.P Accumulated Other Comprehensive Income (Loss)	Ferrellgas, L.P	FERRELLGAS PARTNERS FINANCE CORP. [Member]	Limited Partner Unitholders Class A Limited Partner Units	Limited Partner Unitholders Class B Limited Partner Units	General Partner	Accumulated Other Comprehensive Income (Loss)	Parent [Member]	Non-Controlling Interest [Member]	Total
Partners' capital balance (in shares) at Jul. 31, 2021						4,857,600	1,300,000.0	49,500
Partners' capital balance, beginning at Jul. 31, 2021	$ (887,043,000)	$ (8,886,000)	$ 89,786,000	$ (806,143,000)		$ (1,214,813,000)	$ 383,012,000	$ (72,178,000)	$ 88,866,000	$ (815,113,000)	$ (7,966,000)	$ (823,079,000)
Increase (Decrease) in Partners' Capital [Roll Forward]
Contributions in connection with non-cash ESOP compensation charges	900,000	9,000.0		909,000		892,000		8,000		900,000	9,000	909,000
Distributions	(50,000,000)			(50,000,000)
Distributions to Class B unitholders							(49,998,000)			(49,998,000)		(49,998,000)
Net earnings allocated to preferred units	(17,005,000)			(17,005,000)		(16,835,000)		(170,000)		(17,005,000)		(17,005,000)
Net loss	(7,913,000)	(254,000)		(8,167,000)	$ 0	(8,520,000)		(86,000)		(8,606,000)	(254,000)	(8,860,000)
Other comprehensive income (loss)			50,322,000	50,322,000					49,813,000	49,813,000	509,000	50,322,000
Partners' capital balance, ending at Oct. 31, 2021	(961,061,000)	(9,131,000)	140,108,000	(830,084,000)		$ (1,239,276,000)	$ 333,014,000	$ (72,426,000)	138,679,000	(840,009,000)	(7,702,000)	(847,711,000)
Partners' capital balance (in shares) at Oct. 31, 2021						4,857,600	1,300,000.0	49,500
Partners' capital balance (in shares) at Jul. 31, 2022						4,857,600	1,300,000.0	49,500
Partners' capital balance, beginning at Jul. 31, 2022	(918,146,000)	(7,987,000)	38,307,000	(887,826,000)		$ (1,229,823,000)	$ 383,012,000	$ (71,320,000)	37,907,000	(880,224,000)	(7,587,000)	(887,811,000)
Increase (Decrease) in Partners' Capital [Roll Forward]
Contributions in connection with non-cash ESOP compensation charges	716,000	7,000.0		723,000		709,000		7,000		716,000	7,000	723,000
Net earnings allocated to preferred units	(16,251,000)			(16,251,000)		(16,088,000)		(163,000)		(16,251,000)		(16,251,000)
Net loss	(4,544,000)	(212,000)		(4,756,000)	$ (338)	(4,500,000)		(45,000)		(4,545,000)	(212,000)	(4,757,000)
Other comprehensive income (loss)			(48,973,000)	(48,973,000)					(48,478,000)	(48,478,000)	(495,000)	(48,973,000)
Partners' capital balance, ending at Oct. 31, 2022	$ (938,225,000)	$ (8,192,000)	$ (10,666,000)	$ (957,083,000)		$ (1,249,702,000)	$ 383,012,000	$ (71,521,000)	$ (10,571,000)	$ (948,782,000)	$ (8,287,000)	$ (957,069,000)
Partners' capital balance (in shares) at Oct. 31, 2022						4,857,600	1,300,000.0	49,500