Fair Value Measurement (Tables)

12 Months Ended

Jul. 31, 2022

Fair Value Disclosures [Abstract]

Assets and Liabilities Fair Value Hierarchy

	Asset (Liability)
	Quoted Prices in Active
	Markets for Identical		Significant Other
	Assets and Liabilities		Observable Inputs		Unobservable Inputs
	(Level 1)		(Level 2)		(Level 3)		Total
July 31, 2022:
Assets:
Derivative financial instruments:
Commodity derivatives	$	—	$	51,267	$	—	$	51,267
Liabilities:
Derivative financial instruments:
Commodity derivatives	$	—	$	(12,960)	$	—	$	(12,960)
July 31, 2021:
Assets:
Derivative financial instruments:
Commodity derivatives	$	—	$	94,244	$	—	$	94,244
Liabilities:
Derivative financial instruments:
Commodity derivatives	$	—	$	(4,458)	$	—	$	(4,458)