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SEGMENT INFORMATION (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |  |
Revenues | $ 1,812,997 | $ 1,826,633 | $ 1,766,356
Electric utility revenues | 1,809,609 | 1,822,965 | 1,762,894
Depreciation | 251,072 | 223,410 | 195,341
Operating income | 353,976 | 327,839 | 313,477
Other income, net | 76,516 | 64,006 | 51,378
Interest income | 43,195 | 44,485 | 28,365
Earnings of unconsolidated equity-method investments | 4,922 | 4,539 | 12,426
Interest on long-term debt | 168,191 | 135,865 | 116,457
Income before income taxes | 310,418 | 305,004 | 289,189
Income tax expense (benefit) | (13,715) | 15,053 | 27,296
Income attributable to IDACORP, Inc. | 323,472 | 289,174 | 261,195
Total assets | 10,225,437 | 9,239,363 | 8,475,918
Segment, Expenditure, Addition to Long-Lived Assets | 1,179,327 | 1,009,279 | 611,137
Consolidation, Eliminations |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 0 | 0 | 0
Depreciation | 0 | 0 | 0
Operating income | 0 | 0 | 0
Other income, net | 0 | 0 | 0
Interest income | (2,971) | (3,244) | (2,832)
Earnings of unconsolidated equity-method investments | 0 | 0 | 0
Interest on long-term debt | (2,971) | (3,244) | (2,832)
Income before income taxes | 0 | 0 | 0
Income tax expense (benefit) | 0 | 0 | 0
Income attributable to IDACORP, Inc. | 0 | 0 | 0
Total assets | (72,977) | (77,892) | (76,294)
Segment, Expenditure, Addition to Long-Lived Assets | $ 0 | 0 | 0
Idaho Power Company |  |  |
Segment Reporting Information [Line Items] |  |  |
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage | 33.00% |  |
Idaho Power Company | Idaho Power |  |  |
Segment Reporting Information [Line Items] |  |  |
Electric utility revenues | $ 1,809,609 | 1,822,965 | 1,762,894
Depreciation | 251,072 | 223,410 | 195,341
Operating income | 355,417 | 328,183 | 313,379
Other income, net | 76,700 | 64,309 | 51,424
Interest income | 35,337 | 38,639 | 26,509
Earnings of unconsolidated equity-method investments | 2,984 | 2,671 | 10,540
Interest on long-term debt | 167,753 | 135,516 | 116,117
Income before income taxes | 302,685 | 298,286 | 285,736
Income tax expense (benefit) | (13,177) | 17,681 | 28,926
Income attributable to IDACORP, Inc. | 315,862 | 280,605 | 256,810
Total assets | 10,036,896 | 8,966,968 | 8,323,531
Segment, Expenditure, Addition to Long-Lived Assets | 1,178,990 | 1,009,138 | 610,913
All Other | Idaho Power |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenues | 3,388 | 3,668 | 3,462
Depreciation | 0 | 0 | 0
Operating income | (1,441) | (344) | 98
Other income, net | (184) | (303) | (46)
Interest income | 10,829 | 9,090 | 4,688
Earnings of unconsolidated equity-method investments | 1,938 | 1,868 | 1,886
Interest on long-term debt | 3,409 | 3,593 | 3,172
Income before income taxes | 7,733 | 6,718 | 3,453
Income tax expense (benefit) | (538) | (2,628) | (1,630)
Income attributable to IDACORP, Inc. | 7,610 | 8,569 | 4,385
Total assets | 261,518 | 350,287 | 228,681
Segment, Expenditure, Addition to Long-Lived Assets | $ 337 | $ 141 | $ 224

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- Definition Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 5A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481203/810-10-50-5A + Details
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