Consolidated Statements Of Cash Flows - USD ($)	9 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Cash flows from operating activities:
Net earnings (loss)	$ 7,127,000	$ (39,028,000)
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization expense	59,214,000	76,565,000
Non-cash employee stock ownership plan compensation charge	4,688,000	10,731,000
Asset impairment charges		10,005,000
Loss on asset sales and disposals	8,403,000	46,414,000
Unrealized gain (loss) on derivatives	0	(91,000)
Provision for doubtful accounts	1,938,000	1,906,000
Deferred tax expense (benefit)	143,000	423,000
Other	9,266,000	6,712,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(33,113,000)	(46,771,000)
Inventories	5,245,000	7,755,000
Prepaid expenses and other current assets	(5,584,000)	(4,070,000)
Accounts payable	(5,713,000)	(18,429,000)
Accrued interest expense	30,216,000	31,915,000
Other current liabilities	(13,506,000)	(1,084,000)
Other assets and liabilities	2,453,000	(4,642,000)
Net cash provided by operating activities	70,777,000	78,311,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(11,351,000)	(14,862,000)
Capital expenditures	(94,660,000)	(58,961,000)
Proceeds from sale of assets	2,416,000	57,802,000
Net cash used in investing activities	(103,595,000)	(16,021,000)
Cash flows from financing activities:
Distributions	(9,814,000)	(29,440,000)
Proceeds from increase in long-term debt	0	23,580,000
Payments on long-term debt	(1,656,000)	(1,892,000)
Net additions to (reductions in) short-term borrowings	(32,800,000)	(84,179,000)
Net additions to collateralized short-term borrowings	4,000,000	35,000,000
Cash paid for financing costs	(531,000)	(1,161,000)
Noncontrolling interest activity	(258,000)	(459,000)
Net cash used in financing activities	(41,059,000)	(58,551,000)
Increase (decrease) in cash and cash equivalents	(73,877,000)	3,739,000
Cash and cash equivalents - beginning of year	119,311,000	5,760,000
Cash and cash equivalents - end of year	45,434,000	9,499,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows from operating activities:
Net earnings (loss)	(3,666)	(2,115)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	1,850
Net cash provided by operating activities	(1,816)	(2,115)
Cash flows from financing activities:
Capital contribution	1,816	2,115
Net cash used in financing activities	1,816	2,115
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 earnings (loss)	33,357,000	(13,012,000)
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization expense	59,214,000	76,565,000
Non-cash employee stock ownership plan compensation charge	4,688,000	10,731,000
Asset impairment charges		10,005,000
Loss on asset sales and disposals	8,403,000	46,414,000
Unrealized gain (loss) on derivatives		(91,000)
Provision for doubtful accounts	1,938,000	1,906,000
Deferred tax expense (benefit)	143,000	423,000
Other	6,135,000	3,987,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(33,113,000)	(46,771,000)
Inventories	5,245,000	7,755,000
Prepaid expenses and other current assets	(5,555,000)	(4,001,000)
Accounts payable	(5,713,000)	(18,429,000)
Accrued interest expense	22,518,000	24,217,000
Other current liabilities	(13,506,000)	(809,000)
Other assets and liabilities	2,453,000	(4,944,000)
Net cash provided by operating activities	86,207,000	93,946,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(11,351,000)	(14,862,000)
Capital expenditures	(94,660,000)	(58,961,000)
Proceeds from sale of assets	2,416,000	57,802,000
Net cash used in investing activities	(103,595,000)	(16,021,000)
Cash flows from financing activities:
Distributions	(25,568,000)	(45,495,000)
Proceeds from increase in long-term debt		23,580,000
Payments on long-term debt	(1,656,000)	(1,892,000)
Net additions to (reductions in) short-term borrowings	(32,800,000)	(84,179,000)
Net additions to collateralized short-term borrowings	4,000,000	35,000,000
Cash paid for financing costs	(531,000)	(1,149,000)
Net cash used in financing activities	(56,555,000)	(74,135,000)
Increase (decrease) in cash and cash equivalents	(73,943,000)	3,790,000
Cash and cash equivalents - beginning of year	119,308,000	5,701,000
Cash and cash equivalents - end of year	45,365,000	9,491,000
Ferrellgas Finance Corp. [Member]
Cash flows from operating activities:
Net earnings (loss)	(5,625)	(5,216)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Prepaid expenses and other current assets	1,500	1,500
Net cash provided by operating activities	(4,125)	(3,716)
Cash flows from financing activities:
Capital contribution	4,125	3,716
Net cash used in financing activities	4,125	3,716
Cash and cash equivalents - beginning of year	1,100	1,100
Cash and cash equivalents - end of year	$ 1,100	$ 1,100