Supplemental Financial Statement Information (Schedule Of Inventories) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2015	Jul. 31, 2014
Propane gas and related products	$ 104,169	$ 121,111
Appliances, parts and supplies	28,104us-gaap_OtherInventoryNetOfReserves	24,858us-gaap_OtherInventoryNetOfReserves
Inventories	132,273us-gaap_InventoryNet	145,969us-gaap_InventoryNet
Ferrellgas, L.P. [Member]
Propane gas and related products	104,169	121,111
Appliances, parts and supplies	28,104	24,858
Inventories	$ 132,273	$ 145,969

Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.6(a))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6386567&loc=d3e3927-108312

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6676-107765

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