Consolidated Statements Of Cash Flows - USD ($)	9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017
Cash flows provided by (used in) operating activities:
Net earnings (loss)	$ (39,028,000)	$ 1,748,000
Reconciliation of net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization expense	76,565,000	77,546,000
Non-cash employee stock ownership plan compensation charge	10,731,000	11,396,000
Non-cash stock-based compensation charge	0	3,298,000
Asset Impairment Charges	10,005,000	0
Loss on asset sales and disposals	46,414,000	8,861,000
Unrealized Gain on Derivatives	(91,000)	(3,888,000)
Provision for doubtful accounts	1,906,000	39,000
Deferred tax expense	423,000	45,000
Other	6,712,000	5,250,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(46,771,000)	(58,923,000)
Inventories	7,755,000	(2,163,000)
Prepaid expenses and other current assets	(4,070,000)	12,115,000
Accounts payable	(18,429,000)	18,830,000
Accrued interest expense	31,915,000	34,054,000
Other current liabilities	(1,084,000)	5,053,000
Other assets and liabilities	(4,642,000)	5,070,000
Net cash provided by operating activities	78,311,000	118,331,000
Cash flows provided by (used in) investing activities:
Business acquisitions, net of cash acquired	(14,862,000)	(3,539,000)
Capital expenditures	(58,961,000)	(35,412,000)
Proceeds from sale of assets	57,802,000	4,721,000
Other	0	(37,000)
Net cash used in investing activities	(16,021,000)	(34,267,000)
Cash flows provided by (used in) financing activities:
Distributions	(29,440,000)	(69,920,000)
Proceeds from issuance of long-term debt	23,580,000	220,354,000
Payments on long-term debt	(1,892,000)	(173,471,000)
Net additions to (reductions in) short-term borrowings	(84,179,000)	(62,902,000)
Net additions to collateralized short-term borrowings	35,000,000	27,000,000
Cash paid for financing costs	(1,161,000)	(5,633,000)
Proceeds from (Payments to) Noncontrolling Interests	(459,000)	900,000
Payments for Repurchase of Common Stock	0	(15,851,000)
Net cash used in financing activities	(58,551,000)	(79,523,000)
Net change in cash and cash equivalents	3,739,000	4,541,000
Cash and cash equivalents - beginning of period	5,760,000	4,965,000
Cash and cash equivalents - end of period	9,499,000	9,506,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows provided by (used in) operating activities:
Net earnings (loss)	(2,115)	(3,317)
Changes in operating assets and liabilities, net of effects from business acquisitions:
Net cash provided by operating activities	(2,115)	(3,317)
Cash flows provided by (used in) financing activities:
Capital contribution	2,115	3,317
Net cash used in financing activities	2,115	3,317
Net change in cash	0	0
Cash - beginning of period	1,000	1,000
Cash - end of period	1,000	1,000
Ferrellgas, L.P. [Member]
Cash flows provided by (used in) operating activities:
Net earnings (loss)	(13,012,000)	18,555,000
Reconciliation of net earnings to net cash provided by (used in) operating activities:
Depreciation and amortization expense	76,565,000	77,546,000
Non-cash employee stock ownership plan compensation charge	10,731,000	11,396,000
Non-cash stock-based compensation charge	0	3,298,000
Asset Impairment Charges	10,005,000	0
Loss on asset sales and disposals	46,414,000	8,861,000
Unrealized Gain on Derivatives	(91,000)	(3,888,000)
Provision for doubtful accounts	1,906,000	39,000
Deferred tax expense	423,000	45,000
Other	3,987,000	4,147,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(46,771,000)	(58,923,000)
Inventories	7,755,000	(2,163,000)
Prepaid expenses and other current assets	(4,001,000)	12,111,000
Accounts payable	(18,429,000)	18,830,000
Accrued interest expense	24,217,000	24,428,000
Other current liabilities	(809,000)	5,047,000
Other assets and liabilities	(4,944,000)	5,070,000
Net cash provided by operating activities	93,946,000	124,399,000
Cash flows provided by (used in) investing activities:
Business acquisitions, net of cash acquired	(14,862,000)	(3,539,000)
Capital expenditures	(58,961,000)	(35,412,000)
Proceeds from sale of assets	57,802,000	4,721,000
Other	0	(37,000)
Net cash used in investing activities	(16,021,000)	(34,267,000)
Cash flows provided by (used in) financing activities:
Distributions	(45,495,000)	(94,413,000)
Contributions from partners	0	167,640,000
Proceeds from issuance of long-term debt	23,580,000	52,354,000
Payments on long-term debt	(1,892,000)	(173,471,000)
Net additions to (reductions in) short-term borrowings	(84,179,000)	(62,902,000)
Net additions to collateralized short-term borrowings	35,000,000	27,000,000
Cash paid for financing costs	(1,149,000)	(2,064,000)
Net cash used in financing activities	(74,135,000)	(85,856,000)
Net change in cash and cash equivalents	3,790,000	4,276,000
Cash and cash equivalents - beginning of period	5,701,000	4,890,000
Cash and cash equivalents - end of period	9,491,000	9,166,000
Ferrellgas Finance Corp. [Member]
Cash flows provided by (used in) operating activities:
Net earnings (loss)	(5,216)	(5,175)
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	(3,716)	(3,675)
Cash flows provided by (used in) financing activities:
Capital contribution	3,716	3,675
Net cash used in financing activities	3,716	3,675
Net change in cash	0	0
Cash - beginning of period	1,100	1,100
Cash - end of period	$ 1,100	$ 1,100