{"cik":49648,"taxonomy":"us-gaap","tag":"EarningsPerShareBasic","label":"Earnings Per Share, Basic","description":"The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.","entityName":"IDAHO POWER CO","units":{"USD/shares":[{"start":"2014-01-01","end":"2014-06-30","val":1.44,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30"},{"start":"2014-04-01","end":"2014-06-30","val":0.89,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30","frame":"CY2014Q2"},{"start":"2015-01-01","end":"2015-06-30","val":1.78,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30"},{"start":"2015-04-01","end":"2015-06-30","val":1.32,"accn":"0000049648-15-000007","fy":2015,"fp":"Q2","form":"10-Q","filed":"2015-07-30","frame":"CY2015Q2"},{"start":"2025-01-01","end":"2025-06-30","val":2.87,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30"},{"start":"2025-04-01","end":"2025-06-30","val":1.77,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2025Q2"},{"start":"2026-01-01","end":"2026-06-30","val":3.08,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30"},{"start":"2026-04-01","end":"2026-06-30","val":1.84,"accn":"0001057877-26-000129","fy":2026,"fp":"Q2","form":"10-Q","filed":"2026-07-30","frame":"CY2026Q2"}]}}