REVENUES: (Policies)	12 Months Ended
	Dec. 31, 2021
Revenues [Abstract]
Revenue Recognition, Policy	RevenuesOperating revenues are generally recorded when service is rendered or energy is delivered to customers. Idaho Power accrues estimated unbilled revenues for electric services delivered to customers but not yet billed at year-end. Idaho Power does not report any collections of franchise fees and similar taxes related to energy consumption on the income statement. In addition, regulatory mechanisms in place in Idaho and Oregon affect the reported amount of revenue.