Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Cash flows from operating activities:
Net earnings (loss)	$ (33,715,000)	$ (57,167,000)	$ 10,896,000
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization expense	84,202,000	83,344,000	83,841,000
Non-cash employee stock ownership plan compensation charge	21,789,000	15,769,000	9,440,000
Non-cash stock and unit-based compensation charge	24,508,000	13,545,000	8,843,000
Loss on disposal of assets	6,486,000	10,421,000	6,035,000
Loss on extinguishment of debt	6,526,000	0	0
Change in fair value of contingent consideration	5,000,000
Provision for doubtful accounts	3,419,000	2,066,000	4,822,000
Deferred tax expense (benefit)	88,000	133,000	913,000
Other	5,372,000	4,520,000	2,327,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(48,087,000)	(5,901,000)	30,497,000
Inventories	(28,738,000)	15,869,000	8,541,000
Prepaid expenses and other current assets	(3,960,000)	6,157,000	(8,507,000)
Accounts payable	16,279,000	508,000	(19,143,000)
Accrued interest expense	(7,613,000)	(150,000)	166,000
Other current liabilities	8,579,000	6,369,000	7,969,000
Other liabilities	(1,896,000)	303,000	(445,000)
Net cash provided by (used in) operating activities	125,669,000	210,120,000	124,403,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(162,004,000)	(37,186,000)	(10,387,000)
Capital expenditures	(52,572,000)	(40,910,000)	(49,303,000)
Proceeds from sale of assets	4,524,000	9,980,000	5,742,000
Other	(23,000)	0	0
Net cash used in investing activities	(210,075,000)	(68,116,000)	(53,948,000)
Cash flows from financing activities:
Distributions	(160,925,000)	(159,682,000)	(156,520,000)
Proceeds from increase in long-term debt	750,351,000	58,356,000	49,697,000
Payments on long-term debt	(569,841,000)	(3,912,000)	(52,885,000)
Net additions to (reductions in) short-term borrowings	19,465,000	(45,676,000)	30,803,000
Net additions to collateralized short-term borrowings	9,000,000	8,000,000	13,000,000
Cash paid for financing costs	(11,508,000)	0	(3,607,000)
Noncontrolling interest activity	(1,282,000)	(1,781,000)	(1,239,000)
Proceeds from exercise of common unit options	605,000	864,000	891,000
Proceeds from equity offering, net of issuance costs of $0, $0 and $62 for the years ended July 31, 2014, 2013 and 2012, respectively	50,000,000	0	49,938,000
Cash contributions from partners in connection with common unit issuances	511,000	9,000	511,000
Net cash provided by (used in) financing activities	86,376,000	(143,822,000)	(69,411,000)
Effect of exchange rate changes on cash	(145,000)	(147,000)	(52,000)
Increase (decrease) in cash and cash equivalents	1,825,000	(1,965,000)	992,000
Cash and cash equivalents - beginning of year	6,464,000	8,429,000	7,437,000
Cash and cash equivalents - end of year	8,289,000	6,464,000	8,429,000
Ferrellgas Partners Finance Corp. [Member]
Cash flows from operating activities:
Net earnings (loss)	2,149	2,038	1,999
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Deferred tax expense (benefit)	0	0	0
Changes in operating assets and liabilities, net of effects from business acquisitions:
Net cash provided by (used in) operating activities	(2,149)	(2,038)	(1,999)
Cash flows from financing activities:
Capital contribution	2,149	2,038	1,999
Net cash provided by (used in) financing activities	2,149	2,038	1,999
Increase (decrease) in cash and cash equivalents	0	0	0
Cash - beginning of year	969	969	969
Cash - end of year	969	969	969
Ferrellgas, L.P. [Member]
Cash flows from operating activities:
Net earnings (loss)	(49,907,000)	(73,375,000)	(5,589,000)
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Depreciation and amortization expense	84,202,000	83,344,000	83,841,000
Non-cash employee stock ownership plan compensation charge	21,789,000	15,769,000	9,440,000
Non-cash stock and unit-based compensation charge	24,508,000	13,545,000	8,843,000
Loss on disposal of assets	6,486,000	10,421,000	6,035,000
Loss on extinguishment of debt	6,526,000		0
Change in fair value of contingent consideration	5,000,000
Provision for doubtful accounts	3,419,000	2,066,000	4,822,000
Deferred tax expense (benefit)	88,000	133,000	913,000
Other	4,898,000	4,067,000	1,902,000
Changes in operating assets and liabilities, net of effects from business acquisitions:
Accounts and notes receivable, net of securitization	(48,087,000)	(5,901,000)	30,497,000
Inventories	(28,738,000)	15,869,000	8,541,000
Prepaid expenses and other current assets	(3,994,000)	6,143,000	(8,485,000)
Accounts payable	16,279,000	508,000	(19,143,000)
Accrued interest expense	(7,611,000)	(151,000)	165,000
Other current liabilities	8,674,000	6,454,000	7,988,000
Other liabilities	(1,896,000)	303,000	(445,000)
Net cash provided by (used in) operating activities	141,450,000	225,945,000	140,503,000
Cash flows from investing activities:
Business acquisitions, net of cash acquired	(162,019,000)	(37,186,000)	(10,400,000)
Capital expenditures	(52,572,000)	(40,910,000)	(49,303,000)
Proceeds from sale of assets	4,524,000	9,980,000	5,742,000
Other	(23,000)	0	0
Net cash used in investing activities	(210,090,000)	(68,116,000)	(53,961,000)
Cash flows from financing activities:
Distributions	(178,426,000)	(177,170,000)	(173,975,000)
Capital contribution	51,626,000	809,000	51,218,000
Proceeds from increase in long-term debt	750,351,000	58,356,000	49,697,000
Payments on long-term debt	(569,841,000)	(3,912,000)	(52,885,000)
Net additions to (reductions in) short-term borrowings	19,465,000	(45,676,000)	30,803,000
Net additions to collateralized short-term borrowings	9,000,000	8,000,000	13,000,000
Cash paid for financing costs	(11,414,000)	0	(3,472,000)
Proceeds from equity offering, net of issuance costs of $0, $0 and $62 for the years ended July 31, 2014, 2013 and 2012, respectively	50,000,000
Net cash provided by (used in) financing activities	70,761,000	(159,593,000)	(85,614,000)
Effect of exchange rate changes on cash	(145,000)	(147,000)	(52,000)
Increase (decrease) in cash and cash equivalents	1,976,000	(1,911,000)	876,000
Cash and cash equivalents - beginning of year	6,307,000	8,218,000	7,342,000
Cash and cash equivalents - end of year	8,283,000	6,307,000	8,218,000
Ferrellgas Finance Corp. [Member]
Cash flows from operating activities:
Net earnings (loss)	5,289	4,999	3,489
Reconciliation of net earnings (loss) to net cash provided by operating activities:
Deferred tax expense (benefit)	0	0	0
Changes in operating assets and liabilities, net of effects from business acquisitions:
Net cash provided by (used in) operating activities	(5,289)	(4,999)	(3,489)
Cash flows from financing activities:
Capital contribution	5,289	4,999	3,489
Net cash provided by (used in) financing activities	5,289	4,999	3,489
Increase (decrease) in cash and cash equivalents	0	0	0
Cash - beginning of year	1,100	1,100	1,100
Cash - end of year	$ 1,100	$ 1,100	$ 1,100