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Shareholders' Equity (Tables) | 9 Months Ended
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Jun. 30, 2022
Equity [Abstract] |
Reconciliation of Changes in Stockholders Equity | The following tables present a reconciliation of changes in stockholders' equity for the three and nine months ended June 30, 2022 and 2021.
| 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 |
Net income | — |  |  | — |  |  | — |  |  | — |  |  | 128,547 |  |  | 128,547 |
Other comprehensive income | — |  |  | — |  |  | — |  |  | 159,631 |  |  | — |  |  | 159,631 |
Cash dividends ($0.68 per share) | — |  |  | — |  |  | — |  |  | — |  |  | (95,312) |  |  | (95,312) |
Common stock issued: |  |  |  |  |  |  |  |  |  |  |
Public and other stock offerings | 801,952 |  |  | 4 |  |  | 84,656 |  |  | — |  |  | — |  |  | 84,660 |
Stock-based compensation plans | 74,775 |  |  | — |  |  | 7,414 |  |  | — |  |  | — |  |  | 7,414 |
Balance, June 30, 2022 | 139,888,756 |  |  | $ | 699 |  |  | $ | 5,726,090 |  |  | $ | 305,210 |  |  | $ | 3,236,172 |  |  | $ | 9,268,171 |
| 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, 2020 | 125,882,477 |  |  | $ | 629 |  |  | $ | 4,377,149 |  |  | $ | (57,589) |  |  | $ | 2,471,014 |  |  | $ | 6,791,203 |
Net income | — |  |  | — |  |  | — |  |  | — |  |  | 217,678 |  |  | 217,678 |
Other comprehensive income | — |  |  | — |  |  | — |  |  | 60,121 |  |  | — |  |  | 60,121 |
Cash dividends ($0.625 per share) | — |  |  | — |  |  | — |  |  | — |  |  | (79,023) |  |  | (79,023) |
Common stock issued: |  |  |  |  |  |  |  |  |  |  |
Public and other stock offerings | 2,126,118 |  |  | 11 |  |  | 219,998 |  |  | — |  |  | — |  |  | 220,009 |
Stock-based compensation plans | 144,366 |  |  | 1 |  |  | 3,167 |  |  | — |  |  | — |  |  | 3,168 |
Balance, December 31, 2020 | 128,152,961 |  |  | 641 |  |  | 4,600,314 |  |  | 2,532 |  |  | 2,609,669 |  |  | 7,213,156 |
Net income | — |  |  | — |  |  | — |  |  | — |  |  | 296,754 |  |  | 296,754 |
Other comprehensive income | — |  |  | — |  |  | — |  |  | 137,939 |  |  | — |  |  | 137,939 |
Cash dividends ($0.625 per share) | — |  |  | — |  |  | — |  |  | — |  |  | (80,325) |  |  | (80,325) |
Common stock issued: |  |  |  |  |  |  |  |  |  |  |
Public and other stock offerings | 2,498,026 |  |  | 12 |  |  | 248,948 |  |  | — |  |  | — |  |  | 248,960 |
Stock-based compensation plans | 16,122 |  |  | — |  |  | 4,441 |  |  | — |  |  | — |  |  | 4,441 |
Balance, March 31, 2021 | 130,667,109 |  |  | 653 |  |  | 4,853,703 |  |  | 140,471 |  |  | 2,826,098 |  |  | 7,820,925 |
Net income | — |  |  | — |  |  | — |  |  | — |  |  | 102,411 |  |  | 102,411 |
Other comprehensive loss | — |  |  | — |  |  | — |  |  | (79,232) |  |  | — |  |  | (79,232) |
Cash dividends ($0.625 per share) | — |  |  | — |  |  | — |  |  | — |  |  | (81,912) |  |  | (81,912) |
Common stock issued: |  |  |  |  |  |  |  |  |  |  |
Public and other stock offerings | 39,078 |  |  | 1 |  |  | 3,829 |  |  | — |  |  | — |  |  | 3,830 |
Stock-based compensation plans | 80,852 |  |  | — |  |  | 7,736 |  |  | — |  |  | — |  |  | 7,736 |
Balance, June 30, 2021 | 130,787,039 |  |  | $ | 654 |  |  | $ | 4,865,268 |  |  | $ | 61,239 |  |  | $ | 2,846,597 |  |  | $ | 7,773,758 |
Summary of Forward Sales Agreements | Additionally, we had $700.9 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 |  | 5,527,318 |  |  | $ | 595,261 |  |  |  | $ | 107.69 |
December 29, 2023 |  | 919,898 |  |  | 105,634 |  |  |  | $ | 114.83 |
Total |  | 6,447,216 |  |  | $ | 700,895 |  |  |  | $ | 108.71 |
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, 2021 | $ | 47 |  |  | $ | 69,756 |  |  |  |  | $ | 69,803 |
Other comprehensive income (loss) before reclassifications | (336) |  |  | 233,511 |  |  |  |  | 233,175 |
Amounts reclassified from accumulated other comprehensive income | — |  |  | 2,232 |  |  |  |  | 2,232 |
Net current-period other comprehensive income (loss) | (336) |  |  | 235,743 |  |  |  |  | 235,407 |
June 30, 2022 | $ | (289) |  |  | $ | 305,499 |  |  |  |  | $ | 305,210 |
| Available- for-Sale Securities |  | Interest Rate Agreement Cash Flow Hedges |  |  |  | Total
| (In thousands)
September 30, 2020 | $ | 238 |  |  | $ | (57,827) |  |  |  |  | $ | (57,589) |
Other comprehensive income (loss) before reclassifications | (165) |  |  | 115,568 |  |  |  |  | 115,403 |
Amounts reclassified from accumulated other comprehensive income | — |  |  | 3,425 |  |  |  |  | 3,425 |
Net current-period other comprehensive income (loss) | (165) |  |  | 118,993 |  |  |  |  | 118,828 |
June 30, 2021 | $ | 73 |  |  | $ | 61,166 |  |  |  |  | $ | 61,239 |

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- Definition Tabular disclosure of freestanding forward contracts issued by an entity that are indexed to, and potentially settled in an entity's own stock. The disclosure may include, but not be limited to: (i) the forward rate and the number of shares to which the contract is indexed, (ii) the settlement date or dates of the contract, (iii) the issuer's accounting for the contract, (iv) settlement alternatives (if applicable) including who controls the settlement alternatives and the maximum number of shares that could be required to be issued to net share settle the contract (if applicable), (v) the fact that a potentially infinite number of shares may be required to be issued to settle the contract, if a contract does not have a stated fixed or determinable maximum number of shares, and (vi) the contract's current fair value for each settlement alternative and how changes in the price of the issuer's equity instruments affect those settlement amounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123477628&loc=d3e90205-114008 + Details
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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644 + Details
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