Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net income	$ 163,406	$ 140,548	$ 140,120
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	160,061	150,389	148,152
Other amortization	4,667	7,958	19,318
Provision for loan losses	1,507	12,883	15,009
Impairment of utility assets	0	40,000	9,215
Loans receivable originated and purchased, held for sale	(249,022)	(519,622)	(267,656)
Proceeds from sale of loans receivable, held for sale	273,775	513,000	273,932
Gain on sale of credit card portfolio	(2,251)	0	0
Increase in deferred income taxes	80,399	90,848	79,444
Excess tax benefits from share-based payment arrangements	(430)	(61)	0
Allowance for equity funds used during construction	(5,561)	(7,007)	(5,964)
Change in cash overdraft	1,038	0	(2,688)
Changes in assets and liabilities
Decrease (increase) in accounts receivable and unbilled revenues, net	16,038	(18,501)	(77,326)
Decrease (increase) in fuel oil stock	27,332	10,129	(18,843)
Increase in regulatory assets	(65,461)	(72,401)	(40,132)
Decrease in accounts, interest and dividends payable	(23,153)	(39,738)	(34,480)
Change in prepaid and accrued income taxes and revenue taxes	(19,406)	21,079	73,153
Increase (decrease) in defined benefit pension and other postretirement benefit plans liability	(33,014)	(228)	(6,922)
Change in other assets and liabilities	(2,779)	(94,734)	(53,966)
Net cash provided by operating activities	327,146	234,542	250,366
Cash flows from investing activities
Available-for-sale investment and mortgage-related securities purchased	(112,654)	(243,633)	(361,876)
Principal repayments on available-for-sale investment and mortgage-related securities	158,558	191,253	389,906
Proceeds from sale of available-for-sale investment and mortgage-related securities	71,367	3,548	32,799
Net increase in loans held for investment	(398,426)	(112,730)	(181,080)
Proceeds from sale of real estate acquired in settlement of loans	9,212	11,336	8,020
Capital expenditures	(353,879)	(325,480)	(235,116)
Contributions in aid of construction	32,160	45,982	23,534
Proceeds from sale of credit card portfolio	26,386	0	0
Other	3,516	2,677	(2,974)
Net cash used in investing activities	(563,760)	(427,047)	(326,787)
Cash flows from financing activities
Net increase in deposit liabilities	142,561	159,884	94,660
Net increase in short-term borrowings with original maturities of three months or less	21,789	14,872	43,898
Net increase (decrease) in retail repurchase agreements	(1,418)	(37,291)	10,910
Proceeds from other bank borrowings	130,000	5,000	0
Repayments of other bank borrowings	(80,000)	(5,000)	(15,000)
Proceeds from issuance of long-term debt	286,000	457,000	125,000
Repayment of long-term debt	(216,000)	(375,500)	(150,000)
Excess tax benefits from share-based payment arrangements	430	61	0
Net proceeds from issuance of common stock	55,086	23,613	15,979
Common stock dividends	(98,383)	(96,202)	(106,812)
Preferred stock dividends of subsidiaries	(1,890)	(1,890)	(1,890)
Other	(1,187)	(2,645)	(710)
Net cash provided by (used in) financing activities	236,988	141,902	16,035
Net increase (decrease) in cash and cash equivalents	374	(50,603)	(60,386)
Cash and cash equivalents, January 1	219,662	270,265	330,651
Cash and cash equivalents, December 31	220,036	219,662	270,265
Hawaiian Electric Company, Inc. and Subsidiaries
Cash flows from operating activities
Net income	124,924	101,271	101,981
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation of property, plant and equipment	154,025	144,498	142,975
Other amortization	5,077	6,998	17,378
Impairment of utility assets	0	40,000	9,215
Increase in deferred income taxes	64,507	86,878	69,091
Change in tax credits, net	7,017	6,075	2,087
Allowance for equity funds used during construction	(5,561)	(7,007)	(5,964)
Change in cash overdraft	1,038	0	(2,688)
Changes in assets and liabilities
Decrease (increase) in accounts receivable	49,445	(47,004)	(44,404)
Decrease (increase) in accrued unbilled revenues	(9,826)	3,528	(33,442)
Decrease (increase) in fuel oil stock	27,332	10,129	(18,843)
Increase in materials and supplies	(7,959)	(7,897)	(6,471)
Increase in regulatory assets	(65,461)	(72,401)	(40,132)
Decrease in accounts payable	(20,828)	(38,913)	(35,815)
Change in prepaid and accrued income taxes and revenue taxes	(2,028)	25,239	69,736
Increase (decrease) in defined benefit pension and other postretirement benefit plans liability	2,240	(744)	(27,004)
Change in other assets and liabilities	(31,499)	(73,419)	(36,306)
Net cash provided by operating activities	292,443	177,231	161,394
Cash flows from investing activities
Capital expenditures	(342,485)	(310,091)	(226,022)
Contributions in aid of construction	32,160	45,982	23,534
Other	(230)	0	77
Net cash used in investing activities	(310,555)	(264,109)	(202,411)
Cash flows from financing activities
Proceeds from issuance of long-term debt	236,000	457,000	0
Repayment of long-term debt	(166,000)	(368,500)	0
Net proceeds from issuance of common stock	78,500	44,000	40,000
Common stock dividends	(81,578)	(73,044)	(70,558)
Preferred stock dividends of Hawaiian Electric and subsidiaries	(1,995)	(1,995)	(1,995)
Other	(1,149)	(2,230)	(560)
Net cash provided by (used in) financing activities	63,778	55,231	(33,113)
Net increase (decrease) in cash and cash equivalents	45,666	(31,647)	(74,130)
Cash and cash equivalents, January 1	17,159	48,806	122,936
Cash and cash equivalents, December 31	$ 62,825	$ 17,159	$ 48,806