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SEGMENT INFORMATION (Tables) | 12 Months Ended
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Dec. 31, 2025
Segment Reporting [Abstract] |
Schedule of Segment Reporting Information, by Segment | The table below summarizes the segment information for IDACORP’s utility operations and the total of all other segments, and reconciles this information to total enterprise amounts (in thousands of dollars):
|  | Utility Operations |  | All Other |  | Eliminations |  | Consolidated Total
2025 |  |  |  |  |  |  |  |
Revenues |  | $ | 1,809,609 |  |  | $ | 3,388 |  |  | $ | — |  |  | $ | 1,812,997 |
Depreciation and amortization |  | 251,072 |  |  | — |  |  | — |  |  | 251,072 |
Operating income |  | 355,417 |  |  | (1,441) |  |  | — |  |  | 353,976 |
Other income, net |  | 76,700 |  |  | (184) |  |  | — |  |  | 76,516 |
Interest income, including carrying charges on regulatory assets |  | 35,337 |  |  | 10,829 |  |  | (2,971) |  |  | 43,195 |
Equity-method income |  | 2,984 |  |  | 1,938 |  |  | — |  |  | 4,922 |
Interest expense |  | 167,753 |  |  | 3,409 |  |  | (2,971) |  |  | 168,191 |
Income before income taxes |  | 302,685 |  |  | 7,733 |  |  | — |  |  | 310,418 |
Income tax benefit |  | (13,177) |  |  | (538) |  |  | — |  |  | (13,715) |
Net Income attributable to IDACORP, Inc. |  | 315,862 |  |  | 7,610 |  |  | — |  |  | 323,472 |
Total assets |  | 10,036,896 |  |  | 261,518 |  |  | (72,977) |  |  | 10,225,437 |
Expenditures for long-lived assets |  | 1,178,990 |  |  | 337 |  |  | — |  |  | 1,179,327 |
2024 |  |  |  |  |  |  |  |
Revenues |  | $ | 1,822,965 |  |  | $ | 3,668 |  |  | $ | — |  |  | $ | 1,826,633 |
Depreciation and amortization |  | 223,410 |  |  | — |  |  | — |  |  | 223,410 |
Operating income |  | 328,183 |  |  | (344) |  |  | — |  |  | 327,839 |
Other income, net |  | 64,309 |  |  | (303) |  |  | — |  |  | 64,006 |
Interest income, including carrying charges on regulatory assets |  | 38,639 |  |  | 9,090 |  |  | (3,244) |  |  | 44,485 |
Equity-method income |  | 2,671 |  |  | 1,868 |  |  | — |  |  | 4,539 |
Interest expense |  | 135,516 |  |  | 3,593 |  |  | (3,244) |  |  | 135,865 |
Income before income taxes |  | 298,286 |  |  | 6,718 |  |  | — |  |  | 305,004 |
Income tax expense (benefit) |  | 17,681 |  |  | (2,628) |  |  | — |  |  | 15,053 |
Net Income attributable to IDACORP, Inc. |  | 280,605 |  |  | 8,569 |  |  | — |  |  | 289,174 |
Total assets |  | 8,966,968 |  |  | 350,287 |  |  | (77,892) |  |  | 9,239,363 |
Expenditures for long-lived assets |  | 1,009,138 |  |  | 141 |  |  | — |  |  | 1,009,279 |
2023 |  |  |  |  |  |  |  |
Revenues |  | $ | 1,762,894 |  |  | $ | 3,462 |  |  | $ | — |  |  | $ | 1,766,356 |
Depreciation and amortization |  | 195,341 |  |  | — |  |  | — |  |  | 195,341 |
Operating income |  | 313,379 |  |  | 98 |  |  | — |  |  | 313,477 |
Other income, net |  | 51,424 |  |  | (46) |  |  | — |  |  | 51,378 |
Interest income, including carrying charges on regulatory assets |  | 26,509 |  |  | 4,688 |  |  | (2,832) |  |  | 28,365 |
Equity-method income |  | 10,540 |  |  | 1,886 |  |  | — |  |  | 12,426 |
Interest expense |  | 116,117 |  |  | 3,172 |  |  | (2,832) |  |  | 116,457 |
Income before income taxes |  | 285,736 |  |  | 3,453 |  |  | — |  |  | 289,189 |
Income tax expense (benefit) |  | 28,926 |  |  | (1,630) |  |  | — |  |  | 27,296 |
Net Income attributable to IDACORP, Inc. |  | 256,810 |  |  | 4,385 |  |  | — |  |  | 261,195 |
Total assets |  | 8,323,531 |  |  | 228,681 |  |  | (76,294) |  |  | 8,475,918 |
Expenditures for long-lived assets |  | 610,913 |  |  | 224 |  |  | — |  |  | 611,137 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-25 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 + Details
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