Shareholders' Equity (Tables)

6 Months Ended

Mar. 31, 2023

Equity [Abstract]

Schedule of Reconciliation of Changes in Stockholders Equity

The following tables present a reconciliation of changes in stockholders' equity for the three and six months ended March 31, 2023 and 2022.

	Common stock			Additional Paid-in Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total
	Number of Shares	Stated Value
	(In thousands, except share and per share data)
Balance, September 30, 2022	140,896,598	$	704	$	5,838,118	$	369,112	$	3,211,157	$	9,419,091
Net income	—	—		—		—		271,860		271,860
Other comprehensive income	—	—		—		22,218		—		22,218
Cash dividends ($0.74 per share)	—	—		—		—		(104,552)		(104,552)
Common stock issued:
Public and other stock offerings	2,147,210	11		223,768		—		—		223,779
Stock-based compensation plans	111,953	1		3,877		—		—		3,878
Balance, December 31, 2022	143,155,761	716		6,065,763		391,330		3,378,465		9,836,274
Net income	—	—		—		—		357,671		357,671
Other comprehensive loss	—	—		—		(30,333)		—		(30,333)
Cash dividends ($0.74 per share)	—	—		—		—		(106,173)		(106,173)
Common stock issued:
Public and other stock offerings	1,316,930	6		143,808		—		—		143,814
Stock-based compensation plans	11,959	—		3,952		—		—		3,952
Balance, March 31, 2023	144,484,650	$	722	$	6,213,523	$	360,997	$	3,629,963	$	10,205,205

	Common stock			Additional Paid-in Capital		Accumulated Other Comprehensive Income (Loss)		Retained Earnings		Total
	Number of Shares	Stated Value
	(In thousands, except share and per share data)
Balance, September 30, 2021	132,419,754	$	662	$	5,023,751	$	69,803	$	2,812,673	$	7,906,889
Net income	—	—		—		—		249,209		249,209
Other comprehensive loss	—	—		—		(45,947)		—		(45,947)
Cash dividends ($0.68 per share)	—	—		—		—		(90,411)		(90,411)
Common stock issued:
Public and other stock offerings	2,730,115	13		265,848		—		—		265,861
Stock-based compensation plans	275,212	2		3,942		—		—		3,944
Balance, December 31, 2021	135,425,081	677		5,293,541		23,856		2,971,471		8,289,545
Net income	—	—		—		—		324,999		324,999
Other comprehensive income	—	—		—		121,723		—		121,723
Cash dividends ($0.68 per share)	—	—		—		—		(93,533)		(93,533)
Common stock issued:
Public and other stock offerings	3,509,116	18		336,451		—		—		336,469
Stock-based compensation plans	77,832	—		4,028		—		—		4,028
Balance, March 31, 2022	139,012,029	$	695	$	5,634,020	$	145,579	$	3,202,937	$	8,983,231

Schedule of Forward Sales Agreements

Additionally, we had $673.2 million in available proceeds from outstanding forward sale agreements, as detailed below.

Maturity	Shares Available	Net Proceeds Available (In thousands)		Forward Price
September 29, 2023	1,157,238	$	132,198	$	114.24
December 29, 2023	919,898	105,843		$	115.06
March 28, 2024	2,744,502	319,894		$	116.56
June 28, 2024	927,939	108,491		$	116.92
September 30, 2024	58,807	6,792		$	115.49
Total	5,808,384	$	673,218	$	115.90

Schedule of Accumulated Other Comprehensive Income (Loss)

The following tables provide the components of our accumulated other comprehensive income (loss) balances, net of the related tax effects allocated to each component of other comprehensive income (loss).

	Available- for-Sale Securities		Interest Rate Agreement Cash Flow Hedges		Total
	(In thousands)
September 30, 2022	$	(495)	$	369,607	$	369,112
Other comprehensive income (loss) before reclassifications	221		(7,276)		(7,055)
Amounts reclassified from accumulated other comprehensive income	—		(1,060)		(1,060)
Net current-period other comprehensive income (loss)	221		(8,336)		(8,115)
March 31, 2023	$	(274)	$	361,271	$	360,997

	Available- for-Sale Securities		Interest Rate Agreement Cash Flow Hedges		Total
	(In thousands)
September 30, 2021	$	47	$	69,756	$	69,803
Other comprehensive income (loss) before reclassifications	(230)		74,518		74,288
Amounts reclassified from accumulated other comprehensive income	—		1,488		1,488
Net current-period other comprehensive income (loss)	(230)		76,006		75,776
March 31, 2022	$	(183)	$	145,762	$	145,579