Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities
Net income	$ 193,062	$ 148,756
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	184,389	178,674
Other amortization	24,511	39,580
Provision for credit losses	(22,367)	39,504
Loans originated, held for sale	(281,744)	(380,864)
Proceeds from sale of loans, held for sale	304,820	387,247
Gain on sale of investment securities, net	(528)	(9,275)
Gain on sale of loans, net	(7,497)	(15,933)
Deferred income taxes	(13,473)	(14,464)
Share-based compensation expense	6,727	5,449
Allowance for equity funds used during construction	(6,995)	(6,556)
Other	(7,046)	(4,773)
Changes in assets and liabilities
Decrease (increase) in accounts receivable and unbilled revenues, net	(58,758)	11,252
Decrease (increase) in fuel oil stock	(42,612)	31,899
Decrease (increase) in regulatory assets	(4,952)	10,012
Increase (decrease) in regulatory liabilities	8,806	(15,755)
Increase (decrease) in accounts, interest and dividends payable	36,850	(20,794)
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	11,133	(32,750)
Decrease in defined benefit pension and other postretirement benefit plans liability	(5,288)	(1,398)
Change in other assets and liabilities	(51,833)	(37,543)
Net cash provided by operating activities	267,205	312,268
Cash flows from investing activities
Available-for-sale investment securities purchased	(1,318,520)	(985,874)
Principal repayments on available-for-sale investment securities	449,459	331,238
Proceeds from sale of available-for-sale investment securities	197,354	169,157
Purchases of held-to-maturity investment securities	(314,327)	(28,602)
Proceeds from repayments or maturities of held-to-maturity investment securities	49,074	34,740
Purchase of stock from Federal Home Loan Bank	(32,980)	(24,006)
Redemption of stock from Federal Home Loan Bank	31,660	21,520
Net decrease (increase) in loans held for investment	157,619	(374,307)
Proceeds from sale of residential loans	17,398	0
Capital expenditures	(219,252)	(296,172)
Proceeds from sale of low-income housing investments	0	6,725
Contributions to low income housing investments	(12,402)	(3,951)
Other	10,078	4,899
Net cash used in investing activities	(984,839)	(1,144,633)
Cash flows from financing activities
Net increase in deposit liabilities	589,581	766,235
Net increase (decrease) in short-term borrowings with original maturities of three months or less	27,755	(112,710)
Net increase in other bank borrowings with original maturities of three months or less	39,635	6,765
Proceeds from issuance of short-term debt	0	165,000
Repayment of short-term debt	(65,000)	(100,000)
Proceeds from issuance of other bank borrowings	0	30,000
Proceeds from issuance of long-term debt	206,988	365,146
Repayment of long-term debt	(80,607)	(178,291)
Withheld shares for employee taxes on vested share-based compensation	(2,006)	(5,700)
Common stock dividends	(111,477)	(108,066)
Preferred stock dividends of subsidiaries	(1,417)	(1,417)
Other	(7,462)	(7,275)
Net cash provided by financing activities	595,990	819,687
Net decrease in cash, cash equivalents and restricted cash	(121,644)	(12,678)
Cash, cash equivalents and restricted cash, beginning of period	358,979	227,685
Cash, cash equivalents and restricted cash, end of period	237,335	215,007
Less: Restricted cash	(9,412)	(21,881)
Cash and cash equivalents, end of period	227,923	193,126
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	137,097	127,795
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	172,122	167,235
Other amortization	17,058	24,929
Deferred income taxes	(12,333)	(9,827)
State refundable credit	(7,955)	(7,589)
Bad debt expense	1,303	1,401
Allowance for equity funds used during construction	(6,995)	(6,556)
Other	991	1,614
Changes in assets and liabilities
Decrease (increase) in accounts receivable	(33,621)	7,076
Decrease (increase) in accrued unbilled revenues	(27,491)	9,842
Decrease (increase) in fuel oil stock	(42,563)	31,494
Increase in materials and supplies	(5,653)	(8,092)
Decrease (increase) in regulatory assets	(4,952)	10,012
Increase (decrease) in regulatory liabilities	8,806	(15,755)
Increase (decrease) in accounts payable	27,210	(34,874)
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	2,934	(34,768)
Decrease in defined benefit pension and other postretirement benefit plans liability	(3,902)	(3,064)
Change in other assets and liabilities	(23,800)	(15,918)
Net cash provided by operating activities	198,256	244,955
Cash flows from investing activities
Capital expenditures	(203,746)	(267,482)
Other	6,157	7,295
Net cash used in investing activities	(197,589)	(260,187)
Cash flows from financing activities
Net increase in other bank borrowings with original maturities of three months or less	0	(38,987)
Proceeds from issuance of short-term debt	0	100,000
Repayment of short-term debt	(50,000)	(100,000)
Proceeds from issuance of long-term debt	115,000	255,000
Repayment of long-term debt	0	(109,000)
Common stock dividends	(83,775)	(80,352)
Preferred stock dividends of Hawaiian Electric and subsidiaries	(1,496)	(1,496)
Other	(942)	(1,569)
Net cash provided by financing activities	(21,213)	23,596
Net decrease in cash, cash equivalents and restricted cash	(20,546)	8,364
Cash, cash equivalents and restricted cash, beginning of period	63,326	41,894
Cash, cash equivalents and restricted cash, end of period	42,780	50,258
Less: Restricted cash	(6,313)	(20,458)
Cash and cash equivalents, end of period	$ 36,467	$ 29,800