Consolidated Statements Of Cash Flows - USD ($)	3 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Cash flows from operating activities:
Net loss	$ (45,717,000)	$ (57,508,000)
Reconciliation of net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	19,219,000	18,992,000
Non-cash employee stock ownership plan compensation charge	795,000	2,748,000
Loss on asset sales and disposals	2,235,000	4,504,000
Provision for doubtful accounts	665,000	519,000
Deferred income tax expense (benefit)	554,000	150,000
Other	3,450,000	3,193,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(14,410,000)	(10,654,000)
Inventories	(4,541,000)	(22,866,000)
Prepaid expenses and other current assets	(8,008,000)	(6,391,000)
Accounts payable	11,360,000	13,159,000
Accrued interest expense	34,167,000	31,987,000
Other current liabilities	8,214,000	6,677,000
Other assets and liabilities	(872,000)	(2,124,000)
Net cash provided by (used in) operating activities	7,111,000	(17,614,000)
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(6,400,000)	(4,625,000)
Capital expenditures	(18,126,000)	(23,433,000)
Proceeds from sale of assets	835,000	1,061,000
Cash payments to construct assets in connection with future lease transactions	(16,879,000)
Cash receipts in connection with leased vehicles	5,863,000
Other		(292,000)
Net cash used in investing activities	(34,707,000)	(27,289,000)
Cash flows from financing activities:
Distributions		(9,814,000)
Payments on long-term debt	(512,000)	(281,000)
Net additions to (reductions in) short-term borrowings	37,000,000	(32,800,000)
Net additions to collateralized short-term borrowings	11,000,000	32,000,000
Cash paid for financing costs and other	(1,140,000)	(224,000)
Noncontrolling interest activity	(1,000)	(101,000)
Net cash used in financing activities	46,347,000	(11,220,000)
Increase (decrease) in cash and cash equivalents	18,751,000	(56,123,000)
Cash and cash equivalents - beginning of year	11,054,000	119,311,000
Cash and cash equivalents - end of year	29,805,000	63,188,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows from operating activities:
Net loss	(891)	(1,941)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	838	1,850
Net cash provided by (used in) operating activities	(53)	(91)
Cash flows from financing activities:
Capital contribution	53	91
Net cash used in financing activities	53	91
Cash and cash equivalents - beginning of year	1,000	1,000
Cash and cash equivalents - end of year	1,000	1,000
Ferrellgas, L.P. [Member]
Cash flows from operating activities:
Net loss	(36,898,000)	(48,814,000)
Reconciliation of net earnings (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization expense	19,219,000	18,992,000
Non-cash employee stock ownership plan compensation charge	795,000	2,748,000
Loss on asset sales and disposals	2,235,000	4,504,000
Provision for doubtful accounts	665,000	519,000
Deferred income tax expense (benefit)	554,000	150,000
Other	2,327,000	2,174,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(14,410,000)	(10,654,000)
Inventories	(4,541,000)	(22,866,000)
Prepaid expenses and other current assets	(7,970,000)	(6,361,000)
Accounts payable	11,360,000	13,159,000
Accrued interest expense	26,469,000	24,290,000
Other current liabilities	8,214,000	6,677,000
Other assets and liabilities	(872,000)	(2,124,000)
Net cash provided by (used in) operating activities	7,147,000	(17,606,000)
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(6,400,000)	(4,625,000)
Capital expenditures	(18,126,000)	(23,433,000)
Proceeds from sale of assets	835,000	1,061,000
Cash payments to construct assets in connection with future lease transactions	(16,879,000)
Cash receipts in connection with leased vehicles	5,863,000
Other		(292,000)
Net cash used in investing activities	(34,707,000)	(27,289,000)
Cash flows from financing activities:
Distributions	(101,000)	(10,015,000)
Payments on long-term debt	(512,000)	(281,000)
Net additions to (reductions in) short-term borrowings	37,000,000	(32,800,000)
Net additions to collateralized short-term borrowings	11,000,000	32,000,000
Cash paid for financing costs and other	(1,140,000)	(224,000)
Net cash used in financing activities	46,247,000	(11,320,000)
Increase (decrease) in cash and cash equivalents	18,687,000	(56,215,000)
Cash and cash equivalents - beginning of year	11,046,000	119,308,000
Cash and cash equivalents - end of year	29,733,000	63,093,000
Ferrellgas Finance Corp. [Member]
Cash flows from operating activities:
Net loss	(1,019)	(1,550)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	966	1,500
Net cash provided by (used in) operating activities	(53)	(50)
Cash flows from financing activities:
Capital contribution	53	50
Net cash used in financing activities	53	50
Cash and cash equivalents - beginning of year	1,100	1,100
Cash and cash equivalents - end of year	$ 1,100	$ 1,100