Investment in Derivative Instruments (Tables)

9 Months Ended

Jun. 30, 2022

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Derivatives Instruments, Income Statement and Balance Sheet Classification

The following table represents the approximate amount of realized and unrealized gains (losses) and changes in fair value recognized in earnings on commodity derivative contracts for the three and nine months ended June 30, 2022 and 2021 and the fair value of these derivatives as of June 30, 2022 and September 30, 2021 (in thousands):

	For the Three Months Ended June 30,
			2022						2021
	Change in						Change in
Income Statement Classification	Realized Gain (Loss)		Unrealized Gain (Loss)		Total Gain (Loss)		Realized Gain (Loss)		Unrealized Gain (Loss)		Total Gain (Loss)
Cost of revenues	$	1,349	$	143	$	1,492	$	302	$	632	$	934
Interest expense, net	(121)		316		195		(163)		132		(31)
Total	$	1,228	$	459	$	1,687	$	139	$	764	$	903

	For the Nine Months Ended June 30,
			2022						2021
	Change in						Change in
Income Statement Classification	Realized Gain (Loss)		Unrealized Gain (Loss)		Total Gain (Loss)		Realized Gain (Loss)		Unrealized Gain (Loss)		Total Gain (Loss)
Cost of revenues	$	2,206	$	921	$	3,127	$	257	$	2,390	$	2,647
Interest expense, net	(1,030)		1,668		638		(511)		751		240
Total	$	1,176	$	2,589	$	3,765	$	(254)	$	3,141	$	2,887

	June 30, 2022		September 30, 2021
Balance Sheet Classification	(unaudited)
Prepaid expenses and other current assets - commodity swaps	$	2,737	$	990
Other assets - commodity swaps	814		822
Other assets - interest rate swaps (1)	12,622		—
Accrued expense and other current liabilities - commodity swaps	(3)		—
Accrued expense and other current liabilities - interest rate swaps	—		(97)
Other long-term liabilities - commodity swaps	(815)		—
Other long-term liabilities - interest rate swaps (2)	—		(748)
Net unrealized gain position	$	15,355	$	967

(1) Includes designated cash flow hedge of $11,767 and $0 as of June 30, 2022 and September 30, 2021, respectively.

(2) Includes designated cash flow hedge of $0 and $(31) as of June 30, 2022 and September 30, 2021, respectively.