Financial Instruments (Tables)

6 Months Ended

Mar. 31, 2024

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Interest Rate Derivatives

The following table summarizes our existing forward starting interest rate swaps as of March 31, 2024. These swaps were designated as cash flow hedges at the time the agreements were executed.

Planned Debt Issuance Date	Amount Hedged
	(In thousands)
Fiscal 2025	$	600,000
Fiscal 2026	300,000
	$	900,000

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value

The following tables present the fair value and balance sheet classification of our financial instruments as of March 31, 2024 and September 30, 2023. The gross amounts of recognized assets and liabilities are netted within our condensed consolidated balance sheets to the extent that we have netting arrangements with our counterparties. However, as of March 31, 2024 and September 30, 2023, no gross amounts and no cash collateral were netted within our consolidated balance sheet.

		March 31, 2024
	Balance Sheet Location	Assets		Liabilities
		(In thousands)
Designated As Hedges:
Interest rate contracts	Other current assets / Other current liabilities	$	258,622	$	—
Interest rate contracts	Deferred charges and other assets / Deferred credits and other liabilities	97,159		—
Total		355,781		—
Not Designated As Hedges:
Commodity contracts	Other current assets / Other current liabilities	1,320		(5,840)
Total		1,320		(5,840)
Gross / Net Financial Instruments		$	357,101	$	(5,840)

		September 30, 2023
	Balance Sheet Location	Assets		Liabilities
		(In thousands)
Designated As Hedges:
Interest rate contracts	Deferred charges and other assets / Deferred credits and other liabilities	$	379,101	$	—
Total		379,101		—
Not Designated As Hedges:
Commodity contracts	Other current assets / Other current liabilities	4,071		(14,584)
Commodity contracts	Deferred charges and other assets / Deferred credits and other liabilities	2,492		(824)
Total		6,563		(15,408)
Gross / Net Financial Instruments		$	385,664	$	(15,408)

Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)

The following table summarizes the gains and losses arising from hedging transactions that were recognized as a component of other comprehensive income (loss), net of taxes, for the three and six months ended March 31, 2024 and 2023.

	Three Months Ended March 31				Six Months Ended March 31
	2024		2023		2024		2023
	(In thousands)
Increase (decrease) in fair value:
Interest rate agreements	$	29,650	$	(29,937)	$	(18,091)	$	(7,276)
Recognition of (gains) losses in earnings due to settlements:
Interest rate agreements	(2,492)		(530)		(4,983)		(1,060)
Total other comprehensive income (loss) from hedging, net of tax	$	27,158	$	(30,467)	$	(23,074)	$	(8,336)

Schedule of Expected Deferred Gains (Losses) Recognition

The following amounts, net of deferred taxes, represent the expected recognition in earnings of the deferred net gains recorded in AOCI associated with our interest rate agreements, based upon the fair values of these agreements at the date of settlement. The remaining amortization periods for these settled amounts extend through fiscal 2053. However, the table below does not include the expected recognition in earnings of our outstanding interest rate swaps as those instruments have not yet settled.

	Interest Rate Agreements
	(In thousands)
Next twelve months	$	9,965
Thereafter	209,850
Total	$	219,815