Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating Activities:
Net Income	$ 37,458	$ 42,637
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	43,666	43,362
Deferred income taxes and investment tax credits	(1,379)	(4,291)
Changes in regulatory assets and liabilities	(9,672)	19,540
Pension and postretirement benefit plan expense	7,260	6,965
Contributions to pension and postretirement benefit plans	(12,270)	(12,410)
Earnings of equity-method investments	(2,316)	(2,381)
Distributions from equity-method investments	2,000	7,700
Allowance for equity funds used during construction	(7,272)	(6,356)
Other non-cash adjustments to net income, net	3,490	2,913
Change in:
Accounts receivable	5,102	(25,235)
Accounts payable and other accrued liabilities	(49,389)	(44,733)
Taxes accrued/receivable	12,932	16,757
Other current assets	1,268	9,112
Other current liabilities	5,122	3,737
Increase (Decrease) in Other Noncurrent Assets	1,925	957
Increase (Decrease) in Other Noncurrent Liabilities	(279)	639
Net cash provided by operating activities	33,796	56,999
Investing Activities:
Additions to property, plant and equipment	(73,566)	(61,330)
Payments received from transmission project joint funding partners	393	695
Investments in affordable housing	1,936	0
Purchase of equity securities	(3,230)	(240)
Proceeds from the sale of equity securities	839	1,313
Other	3,826	2,830
Net cash used in investing activities	(73,674)	(56,732)
Financing Activities:
Dividends on common stock	(34,312)	(32,290)
Payment, Tax Withholding, Share-based Payment Arrangement	4,183	4,107
Other	(10)	(20)
Net cash (used in) provided by financing activities	(38,505)	(36,417)
Net (decrease) increase in cash and cash equivalents	(78,383)	(36,150)
Cash and cash equivalents at beginning of the period	217,254	267,492
Cash and cash equivalents at end of the period	138,871	231,342
Supplemental Disclosure of Cash Flow Information:
Income taxes	0	0
Interest (net of amount capitalized)	19,887	22,889
Non-cash investing activities:
Additions to property, plant and equipment in accounts payable	22,843	23,690
Idaho Power Company
Operating Activities:
Net Income	36,776	41,584
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	43,505	43,212
Deferred income taxes and investment tax credits	(1,207)	(4,137)
Changes in regulatory assets and liabilities	(9,672)	19,540
Pension and postretirement benefit plan expense	7,260	6,965
Contributions to pension and postretirement benefit plans	(12,270)	(12,410)
Earnings of equity-method investments	(2,453)	(2,231)
Distributions from equity-method investments	2,000	7,700
Allowance for equity funds used during construction	(7,272)	(6,356)
Other non-cash adjustments to net income, net	867	77
Change in:
Accounts receivable	4,161	(24,378)
Accounts payable and other accrued liabilities	(49,344)	(44,631)
Taxes accrued/receivable	22,446	16,802
Other current assets	1,297	9,132
Other current liabilities	5,207	3,843
Other assets	(1,935)	(957)
Other liabilities	(180)	692
Net cash provided by operating activities	39,186	54,447
Investing Activities:
Additions to property, plant and equipment	(73,566)	(61,330)
Payments received from transmission project joint funding partners	393	695
Purchase of equity securities	(3,230)	(240)
Proceeds from the sale of equity securities	839	1,313
Other	3,796	2,830
Net cash used in investing activities	(71,768)	(56,732)
Financing Activities:
Dividends on common stock	(33,952)	(32,054)
Other	4	0
Net cash (used in) provided by financing activities	(33,948)	(32,054)
Net (decrease) increase in cash and cash equivalents	(66,530)	(34,339)
Cash and cash equivalents at beginning of the period	98,950	165,460
Cash and cash equivalents at end of the period	32,420	131,121
Supplemental Disclosure of Cash Flow Information:
Income taxes	(9,189)	0
Interest (net of amount capitalized)	19,888	22,866
Non-cash investing activities:
Additions to property, plant and equipment in accounts payable	$ 22,843	$ 23,690