CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (Tables)

6 Months Ended

Jun. 30, 2021

Statement of Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The table below presents changes in components of accumulated other comprehensive income (AOCI), net of tax, during the three and six months ended June 30, 2021 and 2020 (in thousands). Items in parentheses indicate charges to AOCI.

	Defined Benefit Pension Items				Defined Benefit Pension Items
	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Balance at beginning of period	$	(42,522)	$	(35,537)	$	(43,358)	$	(36,284)
Amounts reclassified out of AOCI	836		747		1,672		1,494
Balance at end of period	$	(41,686)	$	(34,790)	$	(41,686)	$	(34,790)

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The table below presents amounts reclassified out of components of AOCI and the income statement location of those amounts reclassified during the three and six months ended June 30, 2021 and 2020 (in thousands). Items in parentheses indicate increases to net income.

	Amount Reclassified from AOCI
Details About AOCI	Three months ended June 30,				Six months ended June 30,
	2021		2020		2021		2020
Amortization of defined benefit pension items(1)
Prior service cost	$	74	$	73	$	148	$	145
Net loss	1,052		933		2,103		1,867
Total before tax	1,126		1,006		2,251		2,012
Tax benefit(2)	(290)		(259)		(579)		(518)
Total reclassification for the period, net of tax	$	836	$	747	$	1,672	$	1,494

(1) Amortization of these items is included in IDACORP's condensed consolidated income statements in other operating expenses and in Idaho Power's condensed consolidated statements of income in other expense, net.

(2) The tax benefit is included in income tax expense in the condensed consolidated statements of income of both IDACORP and Idaho Power.