Supplemental Financial Statement Information (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Propane gas and related products	$ 58,142	$ 67,049
Appliances, parts and supplies	26,920	25,503
Inventories	85,062	92,552
Ferrellgas, L.P. [Member]
Propane gas and related products	58,142	67,049
Appliances, parts and supplies	26,920	25,503
Inventories	$ 85,062	$ 92,552

Carrying amount as of the balance sheet date of product derived from petroleum during the processing of oil or natural gas which is then used as a heat source or fuel.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(a))
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 35
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- Definition

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

+ References

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)
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- Details

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