Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Jul. 31, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Fair Value of Financial Derivatives Balance Sheet Locations

	Final	July 31, 2022
	Maturity	Asset Derivatives			Liability Derivatives
Derivative Instrument	Date	Location	Fair value		Location	Fair value
Derivatives designated as hedging instruments	December 2024
Commodity derivatives-propane		Price risk management asset	$	43,015	Other current liabilities	$	11,840
Commodity derivatives-propane		Other assets, net		8,252	Other liabilities		1,120
		Total	$	51,267	Total	$	12,960

	Final	July 31, 2021
	Maturity	Asset Derivatives			Liability Derivatives
Derivative Instrument	Date	Location	Fair value		Location	Fair value
Derivatives designated as hedging instruments	December 2023
Commodity derivatives-propane		Price risk management asset	$	78,001	Other current liabilities	$	3,429
Commodity derivatives-propane		Other assets, net		16,243	Other liabilities		1,029
		Total	$	94,244	Total	$	4,458

Offsetting Assets And Liabilities [Table Text Block]

	July 31, 2022
	Assets			Liabilities
Description	Location	Amount		Location	Amount
Margin Balances	Prepaid expense and other current assets	$	12,338	Other current liabilities	$	32,805
	Other assets, net		4,797	Other liabilities		7,110
		$	17,135		$	39,915

	July 31, 2021
	Assets			Liabilities
Description	Location	Amount		Location	Amount
Margin Balances	Prepaid expense and other current assets	$	21,068	Other current liabilities	$	79,178
	Other assets, net		3,036	Other liabilities		15,489
		$	24,104		$	94,667

Cash Flow Hedge Derivative Effect on Comprehensive Income

	For the year ended July 31, 2022
				Amount of Gain
	Amount of Gain		Location of Gain	Reclassified from
	Recognized in		Reclassified from	AOCI into Income
Derivative Instrument	AOCI		AOCI into Income	Effective portion		Ineffective portion
Commodity derivatives	$	68,950	Cost of sales - propane and other gas liquids sales	$	120,429	$	—

	For the year ended July 31, 2021
				Amount of Gain
	Amount of Gain		Location of Gain	Reclassified from
	Recognized in		Reclassified from	AOCI into Income
Derivative Instrument	AOCI		AOCI into Income	Effective portion		Ineffective portion
Commodity derivatives	$	136,351	Cost of sales - propane and other gas liquids sales	$	44,252	$	—

	For the year ended July 31, 2020
				Amount of Loss
	Amount of Loss		Location of Loss	Reclassified from
	Recognized in		Reclassified from	AOCI into Income
Derivative Instrument	AOCI		AOCI into Income	Effective portion		Ineffective portion
Commodity derivatives	$	(22,872)	Cost of sales - propane and other gas liquids sales	$	(35,315)	$	—

Changes in Derivatives Included in Accumulated Other Comprehensive Income

	For the year ended July 31,
Gains and losses on derivatives included in AOCI	2022		2021		2020
Beginning balance attributable to Ferrellgas Partners, L.P.	$	88,866	$	(2,303)	$	(14,756)
Change in value of risk management commodity derivatives		68,950		136,351		(22,872)
Reclassification of (gains) losses on commodity hedges to cost of sales - propane and other gas liquids sales, net		(120,429)		(44,252)		35,315
Less: amount attributable to noncontrolling interests		520		(930)		10
Ending balance attributable to Ferrellgas Partners, L.P.	$	37,907	$	88,866	$	(2,303)

	For the year ended July 31,
Gains and losses on derivatives included in AOCI	2022		2021		2020
Beginning balance	$	89,786	$	(2,313)	$	(14,756)
Change in value of risk management commodity derivatives		68,950		136,351		(22,872)
Reclassification of (gains) losses on commodity hedges to cost of sales - propane and other gas liquids sales, net		(120,429)		(44,252)		35,315
Ending balance	$	38,307	$	89,786	$	(2,313)