Consolidated Statements Of Cash Flows - USD ($)	6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Cash flows from operating activities:
Net income (loss)	$ 17,538,000	$ 3,074,000
Reconciliation of net loss to net cash provided by operating activities:
Depreciation and amortization expense	42,639,000	39,014,000
Non-cash employee stock ownership plan compensation charge	1,470,000	1,425,000
Loss on asset sales and disposals	893,000	4,383,000
Provision for doubtful accounts	2,166,000	974,000
Deferred income tax expense (benefit)		552,000
Other	3,995,000	7,498,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(107,008,000)	(68,322,000)
Inventories	(17,809,000)	1,980,000
Prepaid expenses and other current assets	(7,296,000)	(7,039,000)
Accounts payable	45,380,000	12,678,000
Accrued interest expense	13,843,000	2,019,000
Other current liabilities	45,062,000	2,095,000
Other assets and liabilities	3,578,000	237,000
Net cash provided by operating activities	44,451,000	568,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired		(6,400,000)
Capital expenditures	(35,333,000)	(33,422,000)
Proceeds from sale of assets	3,144,000	1,659,000
Cash payments to construct assets in connection with future lease transactions		(30,307,000)
Cash receipts in connection with leased vehicles		19,929,000
Net cash provided by (used in) investing activities	(32,189,000)	(48,541,000)
Cash flows from financing activities:
Payments on long-term debt	(1,120,000)	(972,000)
Net additions to (reductions in) short-term borrowings		(3,000,000)
Net additions to (reductions in) collateralized short-term borrowings		59,000,000
Cash paid for financing costs	(14,960,000)	(3,925,000)
Noncontrolling interest activity		(158,000)
Cash payments for principal portion of lease liability	(3,460,000)	(320,000)
Net cash provided by (used in) financing activities	(19,540,000)	50,625,000
Increase (decrease) in cash and cash equivalents	(7,278,000)	2,652,000
Cash and cash equivalents - beginning of year	333,761,000	11,054,000
Cash, cash equivalents and restricted cash - end of year	326,483,000	13,706,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows from operating activities:
Net income (loss)	(2,149)	(891)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	1,850	838
Net cash provided by operating activities	(299)	(53)
Cash flows from financing activities:
Capital contribution	299	53
Net cash provided by (used in) financing activities	299	53
Cash and cash equivalents - beginning of year	1,000	1,000
Cash, cash equivalents and restricted cash - end of year	1,000	1,000
Ferrellgas, L.P. [Member]
Cash flows from operating activities:
Net income (loss)	32,999,000	20,858,000
Reconciliation of net loss to net cash provided by operating activities:
Depreciation and amortization expense	42,639,000	39,014,000
Non-cash employee stock ownership plan compensation charge	1,470,000	1,425,000
Loss on asset sales and disposals	893,000	4,383,000
Provision for doubtful accounts	2,166,000	974,000
Deferred income tax expense (benefit)		552,000
Other	3,996,000	5,216,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(107,008,000)	(68,322,000)
Inventories	(17,809,000)	1,980,000
Prepaid expenses and other current assets	(7,535,000)	(7,109,000)
Accounts payable	45,380,000	12,678,000
Accrued interest expense	72,000	2,019,000
Other current liabilities	43,861,000	2,095,000
Other assets and liabilities	3,327,000	237,000
Net cash provided by operating activities	44,451,000	16,000,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired		(6,400,000)
Capital expenditures	(35,333,000)	(33,422,000)
Proceeds from sale of assets	3,144,000	1,659,000
Cash payments to construct assets in connection with future lease transactions		(30,307,000)
Cash receipts in connection with leased vehicles		19,929,000
Loan to Ferrellgas Partners, L.P.	(19,900,000)
Net cash provided by (used in) investing activities	(52,089,000)	(48,541,000)
Cash flows from financing activities:
Distributions		(15,654,000)
Payments on long-term debt	(1,120,000)	(972,000)
Net additions to (reductions in) short-term borrowings		(3,000,000)
Net additions to (reductions in) collateralized short-term borrowings		59,000,000
Cash paid for financing costs	(14,960,000)	(3,916,000)
Cash payments for principal portion of lease liability	(3,460,000)	(320,000)
Net cash provided by (used in) financing activities	(19,540,000)	35,138,000
Increase (decrease) in cash and cash equivalents	(27,178,000)	2,597,000
Cash and cash equivalents - beginning of year	333,755,000	11,046,000
Cash, cash equivalents and restricted cash - end of year	306,577,000	13,643,000
Ferrellgas Finance Corp. [Member]
Cash flows from operating activities:
Net income (loss)	(1,803)	(3,906)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	(3,750)	3
Net cash provided by operating activities	(5,553)	(3,903)
Cash flows from financing activities:
Capital contribution	5,553	3,903
Net cash provided by (used in) financing activities	5,553	3,903
Cash and cash equivalents - beginning of year	1,100	1,100
Cash, cash equivalents and restricted cash - end of year	$ 1,100	$ 1,100