Schedule I Parent Only Statements - Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Cash flows from operating activities:
Net earnings (loss)	$ 148,860	$ (69,113)	$ (83,002)
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Other	6,848	8,681	12,583
Loss on extinguishment of debt	0	104,834	37,399
Net cash used in operating activities	160,465	206,428	130,358
Cash flows from investing activities:
Payments to Acquire Businesses, Net of Cash Acquired	(19,679)	(6,567)	(10,195)
Net cash provided by investing activities	(111,776)	(60,953)	(71,296)
Cash flows from financing activities:
Distributions	(99,996)	0	0
Cash paid for financing costs	(337)	(44,290)	(29,458)
Fees in connection with Class B Unit exchange	0	(1,988)	0
Make-whole payments	0	(1,964)	0
Proceeds from issuance of long-term debt	0	1,475,000	703,750
Payments on long-term debt	(1,670)	(2,120)	(1,994)
Net cash used in financing activities	(171,904)	(197,284)	263,645
Increase (decrease) in cash and cash equivalents	(123,215)	(51,809)	322,707
Cash, cash equivalents and restricted cash - beginning of period	281,952	333,761	11,054
Cash, cash equivalents and restricted cash - end of period	158,737	281,952	333,761
Parent Company [Member]
Cash flows from operating activities:
Net earnings (loss)	147,993	(68,411)	(82,499)
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Other	(16,944)	16,208	17,749
Loss on extinguishment of debt		(3,137)
Equity in (earnings) loss of Ferrellgas, L.P.	(150,262)	44,740	49,261
Net cash used in operating activities	(19,213)	(10,600)	(15,489)
Cash flows from investing activities:
Distributions received from Ferrellgas, L.P.	119,216		15,496
Loan from Ferrellgas L.P.		14,810
Net cash provided by investing activities	119,216	14,810	15,496
Cash flows from financing activities:
Distributions	(99,996)
Cash paid for financing costs			(9)
Fees in connection with Class B Unit exchange		(1,988)
Make-whole payments		(1,964)
Net cash used in financing activities	(99,996)	(3,952)	(9)
Increase (decrease) in cash and cash equivalents	7	258	(2)
Cash, cash equivalents and restricted cash - beginning of period	264	6	8
Cash, cash equivalents and restricted cash - end of period	$ 271	$ 264	$ 6