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COMMON STOCK: Common Stock Level 3 (Tables) | 12 Months Ended
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Dec. 31, 2025
Class of Stock Disclosures [Abstract] |
Schedule of Stock by Class | The following table summarizes IDACORP common stock transactions during the last three years and shares reserved at December 31, 2025:
|  | Shares issued |  | Shares reserved
|  | 2025 |  | 2024 |  | 2023 |  | December 31, 2025
Balance at January 1 |  | 53,962,300 |  | 50,615,237 |  | 50,561,892 |  |
Dividend reinvestment and stock purchase plan |  | 49,569 |  | 63,084 |  | — |  | 2,729,049
Employee savings plan |  | — |  | — |  | — |  | 3,567,954
At-the-market offering program(1) |  | 801,914 |  | — |  | — |  | See table note (1)
Equity forward sale agreements |  | — |  | 3,221,982 |  | — |  | 5,180,180
Long-term incentive and compensation plan(2) |  | 45,348 |  | 61,997 |  | 53,345 |  | 2,154,164
Continuous equity program (inactive) |  | — |  | — |  | — |  | 3,000,000
Balance at December 31 |  | 54,859,131 |  | 53,962,300 |  | 50,615,237 |  |
(1) During 2024, IDACORP reserved shares of its common stock through the ATM offering program, up to an aggregate gross sales price of $300 million. At December 31, 2025, $155.5 million in shares of IDACORP’s common stock remained reserved. For more details, see "At-the-Market Offering Program" below in this Note 6. (2) During 2025, 2024, and 2023, IDACORP granted 82,344, 103,771, and 75,295 restricted stock unit awards, respectively, to employees and 11,268, 15,616, and 12,459 shares of common stock, respectively, to directors. During 2025, 2024, and 2023, IDACORP issued 45,348, 61,997, and 53,345 shares of common stock, respectively, using original issuances of shares pursuant to the LTICP, including 9,273, 10,571, and 13,842 shares of common stock, respectively, issued to members of the board of directors.
Schedule of Forward Contracts Indexed to Issuer's Equity | At December 31, 2025, IDACORP had the following FSAs outstanding under its ATM offering program (in thousands of dollars, except for shares and forward price amounts):
Maturity Date |  | Shares |  | Net Proceeds Available |  | Forward Price
March 31, 2026 |  | 198,086 |  | $ | 22,789 |  | $ | 115.05
March 31, 2026 |  | 254,170 |  | 28,970 |  | 113.98
Total / Weighted Average Forward Price |  | 452,256 |  | $ | 51,759 |  | $ | 114.45
Schedule of Forward Contracts Indexed to Issuer's Equity | During 2025, IDACORP settled the following FSAs under its ATM offering program (in thousands of dollars, except for settlement shares and forward settlement price amounts):
Settlement Date |  | Settlement Shares |  | Net Cash Proceeds(1) |  | Forward Settlement Price
November 12, 2025 |  | 500,000 |  | $ | 56,924 |  | $ | 113.85
December 19, 2025 |  | 301,914 |  | 34,793 |  | 115.24
Total / Weighted Average Forward Settlement Price |  | 801,914 |  | $ | 91,717 |  | $ | 114.37
(1) Settlement of the FSAs are reflected in IDACORP’s equity.

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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 -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480237/815-40-50-5 + Details
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- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(27)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-3 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-4 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-5 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481142/505-10-45-2 Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-10 Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-8 Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-6 Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-7 + Details
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