Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net income	$ 64,831	$ 33,893
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	61,427	59,614
Other amortization	10,951	11,418
Provision for credit losses	(8,435)	10,401
Loans originated, held for sale	(162,901)	(76,770)
Proceeds from sale of loans, held for sale	170,862	72,533
Gain on sale of investment securities, net	(528)	0
Gain on sale of loans	(4,300)	(2,000)
Deferred income taxes	(2,196)	(4,996)
Bad debt expense	457	2,724
Share-based compensation expense	2,602	1,704
Allowance for equity funds used during construction	(2,191)	(2,015)
Other	(3,519)	224
Changes in assets and liabilities
Decrease (increase) in accounts receivable and unbilled revenues, net	5,664	(6,563)
Decrease (increase) in fuel oil stock	(16,400)	2,566
Decrease (increase) in regulatory assets	(14,869)	1,171
Increase (decrease) in regulatory liabilities	(4,716)	16,586
Increase in accounts, interest and dividends payable	7,677	8,935
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	(25,513)	(45,205)
Decrease in defined benefit pension and other postretirement benefit plans liability	(2,621)	(490)
Change in other assets and liabilities	(34,095)	(19,713)
Net cash provided by operating activities	41,730	61,293
Cash flows from investing activities
Available-for-sale investment securities purchased	(781,992)	(159,173)
Principal repayments on available-for-sale investment securities	184,755	77,642
Proceeds from sale of available-for-sale investment securities	197,354	0
Principal repayments of held-to-maturity investment securities	20,185	4,851
Purchases of held-to-maturity investment securities	(88,262)	0
Purchase of stock from Federal Home Loan Bank	(22,296)	(20,766)
Redemption of stock from Federal Home Loan Bank	20,976	19,440
Net increase in loans held for investment	23,922	(65,544)
Proceeds from sale of low-income housing investments	0	6,725
Capital expenditures	(74,079)	(125,554)
Contributions to low income housing investments	(3,205)	(1,026)
Other	4,622	2,942
Net cash used in investing activities	(518,020)	(260,463)
Cash flows from financing activities
Net increase in deposit liabilities	358,337	111,881
Net increase (decrease) in short-term borrowings with original maturities of three months or less	35,751	(135,710)
Net increase in other bank borrowings with original maturities of three months or less	13,015	42,495
Proceeds from issuance of short-term debt	0	50,000
Repayment of short-term debt	(65,000)	0
Proceeds from issuance of long-term debt	161,800	186,925
Repayment of long-term debt	(50,699)	(909)
Withheld shares for employee taxes on vested share-based compensation	(1,997)	(5,700)
Common stock dividends	(37,156)	(36,018)
Preferred stock dividends of subsidiaries	(473)	(473)
Other	(4,621)	(4,590)
Net cash provided by financing activities	408,957	207,901
Net increase (decrease) in cash, cash equivalents and restricted cash	(67,333)	8,731
Cash, cash equivalents and restricted cash, beginning of period	358,979	227,685
Cash, cash equivalents and restricted cash, end of period	291,646	236,416
Less: Restricted cash	(14,067)	(30,902)
Cash and cash equivalents, end of period	277,579	205,514
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	43,857	24,404
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation of property, plant and equipment	57,355	55,850
Other amortization	6,577	7,704
Deferred income taxes	(4,671)	(3,762)
State refundable credit	(2,662)	(2,530)
Allowance for equity funds used during construction	(2,191)	(2,015)
Other	(1)	20
Changes in assets and liabilities
Decrease (increase) in accounts receivable	6,078	(9,020)
Decrease (increase) in accrued unbilled revenues	(427)	2,704
Decrease (increase) in fuel oil stock	(16,450)	2,410
Increase in materials and supplies	(2,382)	(496)
Decrease (increase) in regulatory assets	(14,869)	1,171
Increase (decrease) in regulatory liabilities	(4,716)	16,586
Increase (decrease) in accounts payable	6,254	(7,153)
Change in prepaid and accrued income taxes, tax credits and utility revenue taxes	(24,802)	(43,919)
Decrease in defined benefit pension and other postretirement benefit plans liability	(1,434)	(1,017)
Change in other assets and liabilities	(14,012)	(4,520)
Net cash provided by operating activities	31,961	39,141
Cash flows from investing activities
Capital expenditures	(70,361)	(119,144)
Other	1,863	2,713
Net cash used in investing activities	(68,498)	(116,431)
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	50,000
Repayment of short-term debt	(50,000)	0
Proceeds from issuance of long-term debt	115,000	95,000
Common stock dividends	(27,925)	(26,784)
Preferred stock dividends of Hawaiian Electric and subsidiaries	(499)	(499)
Other	(116)	(23)
Net cash provided by financing activities	36,460	78,707
Net increase (decrease) in cash, cash equivalents and restricted cash	(77)	1,417
Cash, cash equivalents and restricted cash, beginning of period	63,326	41,894
Cash, cash equivalents and restricted cash, end of period	63,249	43,311
Less: Restricted cash	(11,506)	(30,902)
Cash and cash equivalents, end of period	$ 51,743	$ 12,409