Consolidated Statements Of Cash Flows - USD ($)	9 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Cash flows from operating activities:
Net earnings	$ (12,397,000)	$ 7,127,000
Reconciliation of net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	59,380,000	59,214,000
Non-cash employee stock ownership plan compensation charge	2,182,000	4,688,000
Loss on asset sales and disposals	6,242,000	8,403,000
Loss on extinguishment of debt, noncash	19,883,000
Provision for doubtful accounts	1,586,000	1,938,000
Deferred income tax expense (benefit)	554,000	143,000
Other	9,837,000	9,266,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(26,942,000)	(33,113,000)
Inventories	15,245,000	5,245,000
Prepaid expenses and other current assets	(6,634,000)	(5,584,000)
Accounts payable	4,236,000	(5,713,000)
Accrued interest expense	32,708,000	30,216,000
Other current liabilities	(7,949,000)	(13,506,000)
Other assets and liabilities	363,000	2,453,000
Net cash provided by operating activities	98,294,000	70,777,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(6,400,000)	(11,351,000)
Capital expenditures	(57,251,000)	(94,660,000)
Proceeds from sale of assets	2,510,000	2,416,000
Cash payments to construct assets in connection with future lease transactions	(37,042,000)
Cash receipts in connection with leased vehicles	21,995,000
Net cash used in investing activities	(76,188,000)	(103,595,000)
Cash flows from financing activities:
Distributions		(9,814,000)
Proceeds from issuance of long-term debt	703,750,000
Reductions on long-term debt	(285,285,000)	(1,656,000)
Net reductions in short-term borrowings	(43,000,000)	(32,800,000)
Net additions to (reductions on) collateralized short-term borrowings	(62,000,000)	4,000,000
Cash paid for financing costs and other	(27,620,000)	(531,000)
Noncontrolling interest activity	(158,000)	(258,000)
Net cash provided by (used in) financing activities	285,687,000	(41,059,000)
Increase (decrease) in cash and cash equivalents	307,793,000	(73,877,000)
Cash and cash equivalents - beginning of year	11,054,000	119,311,000
Cash, cash equivalents and restricted cash - end of year	318,847,000	45,434,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows from operating activities:
Net earnings	(3,977)	(3,666)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	1,858	1,850
Net cash provided by operating activities	(2,119)	(1,816)
Cash flows from financing activities:
Capital contribution	2,119	1,816
Net cash provided by (used in) financing activities	2,119	1,816
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 earnings	13,138,000	33,357,000
Reconciliation of net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	59,380,000	59,214,000
Non-cash employee stock ownership plan compensation charge	2,182,000	4,688,000
Loss on asset sales and disposals	6,242,000	8,403,000
Loss on extinguishment of debt, noncash	19,883,000
Provision for doubtful accounts	1,586,000	1,938,000
Deferred income tax expense (benefit)	554,000	143,000
Other	7,555,000	6,135,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(26,942,000)	(33,113,000)
Inventories	15,245,000	5,245,000
Prepaid expenses and other current assets	(6,704,000)	(5,555,000)
Accounts payable	4,236,000	(5,713,000)
Accrued interest expense	25,010,000	22,518,000
Other current liabilities	(7,949,000)	(13,506,000)
Other assets and liabilities	363,000	2,453,000
Net cash provided by operating activities	113,779,000	86,207,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(6,400,000)	(11,351,000)
Capital expenditures	(57,251,000)	(94,660,000)
Proceeds from sale of assets	2,510,000	2,416,000
Cash payments to construct assets in connection with future lease transactions	(37,042,000)
Cash receipts in connection with leased vehicles	21,995,000
Net cash used in investing activities	(76,188,000)	(103,595,000)
Cash flows from financing activities:
Distributions	(15,654,000)	(25,568,000)
Proceeds from issuance of long-term debt	703,750,000
Reductions on long-term debt	(285,285,000)	(1,656,000)
Net reductions in short-term borrowings	(43,000,000)	(32,800,000)
Net additions to (reductions on) collateralized short-term borrowings	(62,000,000)	4,000,000
Cash paid for financing costs and other	(27,611,000)	(531,000)
Net cash provided by (used in) financing activities	270,200,000	(56,555,000)
Increase (decrease) in cash and cash equivalents	307,791,000	(73,943,000)
Cash and cash equivalents - beginning of year	11,046,000	119,308,000
Cash, cash equivalents and restricted cash - end of year	318,837,000	45,365,000
Ferrellgas Finance Corp. [Member]
Cash flows from operating activities:
Net earnings	(6,010)	(5,625)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	1,841	1,500
Net cash provided by operating activities	(4,169)	(4,125)
Cash flows from financing activities:
Capital contribution	4,169	4,125
Net cash provided by (used in) financing activities	4,169	4,125
Cash and cash equivalents - beginning of year	1,100	1,100
Cash, cash equivalents and restricted cash - end of year	$ 1,100	$ 1,100