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Electric utility segment - Condensed consolidating balance sheet (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Mar. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | --- | --- | --- | --- | --- | ---
Utility property, plant and equipment |  |  |  |  |  |  |
Total property, plant and equipment, net | $ 5,181,427 |  |  | $ 5,109,628 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 574,482 |  |  | 196,813 | $ 198,549 |  |
Restricted Cash and Cash Equivalents | 29,376 |  |  | 30,872 | 0 |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 184,759 |  |  | 199,171 |  |  |
Total assets | 14,480,700 |  | $ 13,745,251 | 13,745,251 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 2,291,398 |  | 2,280,260 | 2,280,260 | 2,208,586 | $ 2,183,515 | $ 2,162,280
Cumulative preferred stock—not subject to mandatory redemption | 0 |  |  | 0 |  |  |
Current liabilities |  |  |  |  |  |  |
Interest and preferred dividends payable | 24,396 |  |  | 24,941 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Deferred income taxes | 368,834 |  | 379,324 | 379,324 |  |  |
Total liabilities and shareholders’ equity | 14,480,700 |  | $ 13,745,251 | 13,745,251 |  |  |
Consolidating adjustments |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 0 |  |  | 0 |  |  |
Plant and equipment | 0 |  |  | 0 |  |  |
Less accumulated depreciation | 0 |  |  | 0 |  |  |
Construction in progress | 0 |  |  | 0 |  |  |
Utility property, plant and equipment, net | 0 |  |  | 0 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 0 |  |  | 0 |  |  |
Total property, plant and equipment, net | 0 |  |  | 0 |  |  |
Investment in wholly owned subsidiaries, at equity | (599,198) |  |  | (591,969) |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 0 |  |  | 0 |  |  |
Restricted Cash and Cash Equivalents | 0 |  |  | 0 |  |  |
Advances to affiliates | (13,500) |  |  | (35,700) |  |  |
Customer accounts receivable, net | 0 |  |  | 0 |  |  |
Accrued unbilled revenues, net | 0 |  |  | 0 |  |  |
Other accounts receivable, net | (16,944) |  |  | (10,695) |  |  |
Fuel oil stock, at average cost | 0 |  |  | 0 |  |  |
Materials and supplies, at average cost | 0 |  |  | 0 |  |  |
Prepayments and other | 0 |  |  | 0 |  |  |
Regulatory assets | 0 |  |  | 0 |  |  |
Total current assets | (30,444) |  |  | (46,395) |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 0 |  |  | 0 |  |  |
Regulatory assets | 0 |  |  | 0 |  |  |
Other | 0 |  |  | 0 |  |  |
Total other long-term assets | 0 |  |  | 0 |  |  |
Total assets | (629,642) |  |  | (638,364) |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | (599,198) |  |  | (591,969) | (584,149) |  | (576,838)
Cumulative preferred stock—not subject to mandatory redemption | 0 |  |  | 0 |  |  |
Long-term debt, net | 0 |  |  | 0 |  |  |
Total capitalization | (599,198) |  |  | (591,969) |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 0 |  |  | 0 |  |  |
Current portion of long-term debt | 0 |  |  | 0 |  |  |
Short-term borrowings from non-affiliates | 0 |  |  | 0 |  |  |
Short-term borrowings from affiliate | (13,500) |  |  | (35,700) |  |  |
Accounts payable | 0 |  |  | 0 |  |  |
Interest and preferred dividends payable | (6) |  |  | (46) |  |  |
Taxes accrued | 0 |  |  | 0 |  |  |
Regulatory liabilities | 0 |  |  | 0 |  |  |
Other | (16,938) |  |  | (10,649) |  |  |
Total current liabilities | (30,444) |  |  | (46,395) |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 0 |  |  | 0 |  |  |
Deferred income taxes | 0 |  |  | 0 |  |  |
Regulatory liabilities | 0 |  |  | 0 |  |  |
Unamortized tax credits | 0 |  |  | 0 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 0 |  |  | 0 |  |  |
Other | 0 |  |  | 0 |  |  |
Total deferred credits and other liabilities | 0 |  |  | 0 |  |  |
Total liabilities and shareholders’ equity | (629,642) |  |  | (638,364) |  |  |
Hawaiian Electric (parent only) | Reportable Legal Entities |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 42,389 |  |  | 42,598 |  |  |
Plant and equipment | 4,859,373 |  |  | 4,765,362 |  |  |
Less accumulated depreciation | (1,636,504) |  |  | (1,591,241) |  |  |
Construction in progress | 170,655 |  |  | 165,137 |  |  |
Utility property, plant and equipment, net | 3,435,913 |  |  | 3,381,856 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 5,308 |  |  | 5,310 |  |  |
Total property, plant and equipment, net | 3,441,221 |  |  | 3,387,166 |  |  |
Investment in wholly owned subsidiaries, at equity | 599,198 |  |  | 591,969 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 55,170 |  |  | 2,239 |  |  |
Restricted Cash and Cash Equivalents | 29,376 |  |  | 30,749 |  |  |
Advances to affiliates | 13,500 |  |  | 27,700 |  |  |
Customer accounts receivable, net | 97,615 |  |  | 105,454 |  |  |
Accrued unbilled revenues, net | 74,086 |  |  | 83,148 |  |  |
Other accounts receivable, net | 19,409 |  |  | 18,396 |  |  |
Fuel oil stock, at average cost | 30,477 |  |  | 69,003 |  |  |
Materials and supplies, at average cost | 38,475 |  |  | 34,876 |  |  |
Prepayments and other | 18,005 |  |  | 88,334 |  |  |
Regulatory assets | 16,846 |  |  | 27,689 |  |  |
Total current assets | 392,959 |  |  | 487,588 |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 159,169 |  |  | 174,886 |  |  |
Regulatory assets | 460,493 |  |  | 476,390 |  |  |
Other | 76,482 |  |  | 69,010 |  |  |
Total other long-term assets | 696,144 |  |  | 720,286 |  |  |
Total assets | 5,129,522 |  |  | 5,187,009 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 2,060,069 |  |  | 2,047,352 | 1,971,762 |  | 1,957,641
Cumulative preferred stock—not subject to mandatory redemption | 22,293 |  |  | 22,293 |  |  |
Long-term debt, net | 1,116,186 |  |  | 1,006,737 |  |  |
Total capitalization | 3,198,548 |  |  | 3,076,382 |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 64,405 |  |  | 63,582 |  |  |
Current portion of long-term debt | 0 |  |  | 61,958 |  |  |
Short-term borrowings from non-affiliates | 49,919 |  |  | 88,987 |  |  |
Short-term borrowings from affiliate | 0 |  |  | 8,000 |  |  |
Accounts payable | 79,071 |  |  | 139,056 |  |  |
Interest and preferred dividends payable | 14,580 |  |  | 14,759 |  |  |
Taxes accrued | 133,321 |  |  | 143,522 |  |  |
Regulatory liabilities | 11,467 |  |  | 13,363 |  |  |
Other | 55,378 |  |  | 51,295 |  |  |
Total current liabilities | 408,141 |  |  | 584,522 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 100,833 |  |  | 111,598 |  |  |
Deferred income taxes | 261,044 |  |  | 265,864 |  |  |
Regulatory liabilities | 674,621 |  |  | 664,894 |  |  |
Unamortized tax credits | 84,885 |  |  | 86,852 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 340,672 |  |  | 339,471 |  |  |
Other | 60,778 |  |  | 57,426 |  |  |
Total deferred credits and other liabilities | 1,522,833 |  |  | 1,526,105 |  |  |
Total liabilities and shareholders’ equity | 5,129,522 |  |  | 5,187,009 |  |  |
HELCO | Reportable Legal Entities |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 5,606 |  |  | 5,606 |  |  |
Plant and equipment | 1,321,091 |  |  | 1,313,727 |  |  |
Less accumulated depreciation | (586,351) |  |  | (574,615) |  |  |
Construction in progress | 20,181 |  |  | 9,993 |  |  |
Utility property, plant and equipment, net | 760,527 |  |  | 754,711 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 115 |  |  | 114 |  |  |
Total property, plant and equipment, net | 760,642 |  |  | 754,825 |  |  |
Investment in wholly owned subsidiaries, at equity | 0 |  |  | 0 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 4,594 |  |  | 6,885 |  |  |
Restricted Cash and Cash Equivalents | 0 |  |  | 123 |  |  |
Advances to affiliates | 0 |  |  | 8,000 |  |  |
Customer accounts receivable, net | 21,422 |  |  | 24,520 |  |  |
Accrued unbilled revenues, net | 12,705 |  |  | 17,071 |  |  |
Other accounts receivable, net | 3,592 |  |  | 1,907 |  |  |
Fuel oil stock, at average cost | 14,965 |  |  | 8,901 |  |  |
Materials and supplies, at average cost | 10,116 |  |  | 8,313 |  |  |
Prepayments and other | 17,151 |  |  | 3,725 |  |  |
Regulatory assets | 2,598 |  |  | 1,641 |  |  |
Total current assets | 87,143 |  |  | 81,086 |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 1,490 |  |  | 1,537 |  |  |
Regulatory assets | 104,707 |  |  | 109,163 |  |  |
Other | 16,915 |  |  | 15,493 |  |  |
Total other long-term assets | 123,112 |  |  | 126,193 |  |  |
Total assets | 970,897 |  |  | 962,104 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 304,088 |  |  | 298,998 | 300,619 |  | 295,874
Cumulative preferred stock—not subject to mandatory redemption | 7,000 |  |  | 7,000 |  |  |
Long-term debt, net | 216,400 |  |  | 206,416 |  |  |
Total capitalization | 527,488 |  |  | 512,414 |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 97 |  |  | 94 |  |  |
Current portion of long-term debt | 14,000 |  |  | 13,995 |  |  |
Short-term borrowings from non-affiliates | 0 |  |  | 0 |  |  |
Short-term borrowings from affiliate | 12,000 |  |  | 0 |  |  |
Accounts payable | 14,408 |  |  | 25,629 |  |  |
Interest and preferred dividends payable | 3,349 |  |  | 3,115 |  |  |
Taxes accrued | 32,526 |  |  | 32,541 |  |  |
Regulatory liabilities | 7,401 |  |  | 9,454 |  |  |
Other | 17,181 |  |  | 11,362 |  |  |
Total current liabilities | 100,962 |  |  | 96,190 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 1,394 |  |  | 1,442 |  |  |
Deferred income taxes | 52,485 |  |  | 53,534 |  |  |
Regulatory liabilities | 178,861 |  |  | 178,474 |  |  |
Unamortized tax credits | 15,773 |  |  | 16,196 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 69,719 |  |  | 69,928 |  |  |
Other | 24,215 |  |  | 33,926 |  |  |
Total deferred credits and other liabilities | 342,447 |  |  | 353,500 |  |  |
Total liabilities and shareholders’ equity | 970,897 |  |  | 962,104 |  |  |
Maui Electric | Reportable Legal Entities |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 3,612 |  |  | 3,612 |  |  |
Plant and equipment | 1,173,377 |  |  | 1,161,199 |  |  |
Less accumulated depreciation | (535,689) |  |  | (524,301) |  |  |
Construction in progress | 23,651 |  |  | 17,944 |  |  |
Utility property, plant and equipment, net | 664,951 |  |  | 658,454 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 1,532 |  |  | 1,532 |  |  |
Total property, plant and equipment, net | 666,483 |  |  | 659,986 |  |  |
Investment in wholly owned subsidiaries, at equity | 0 |  |  | 0 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 4,130 |  |  | 1,797 |  |  |
Restricted Cash and Cash Equivalents | 0 |  |  | 0 |  |  |
Advances to affiliates | 0 |  |  | 0 |  |  |
Customer accounts receivable, net | 19,001 |  |  | 22,816 |  |  |
Accrued unbilled revenues, net | 13,810 |  |  | 17,008 |  |  |
Other accounts receivable, net | 4,358 |  |  | 1,960 |  |  |
Fuel oil stock, at average cost | 15,037 |  |  | 14,033 |  |  |
Materials and supplies, at average cost | 17,653 |  |  | 17,513 |  |  |
Prepayments and other | 2,773 |  |  | 24,921 |  |  |
Regulatory assets | 1,842 |  |  | 1,380 |  |  |
Total current assets | 78,604 |  |  | 101,428 |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 370 |  |  | 386 |  |  |
Regulatory assets | 96,084 |  |  | 98,817 |  |  |
Other | 19,588 |  |  | 17,215 |  |  |
Total other long-term assets | 116,042 |  |  | 116,418 |  |  |
Total assets | 861,129 |  |  | 877,832 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 295,009 |  |  | 292,870 | 283,429 |  | 280,863
Cumulative preferred stock—not subject to mandatory redemption | 5,000 |  |  | 5,000 |  |  |
Long-term debt, net | 228,369 |  |  | 188,561 |  |  |
Total capitalization | 528,378 |  |  | 486,431 |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 32 |  |  | 31 |  |  |
Current portion of long-term debt | 0 |  |  | 20,000 |  |  |
Short-term borrowings from non-affiliates | 0 |  |  | 0 |  |  |
Short-term borrowings from affiliate | 1,500 |  |  | 27,700 |  |  |
Accounts payable | 13,599 |  |  | 23,085 |  |  |
Interest and preferred dividends payable | 2,736 |  |  | 2,900 |  |  |
Taxes accrued | 28,004 |  |  | 31,929 |  |  |
Regulatory liabilities | 7,199 |  |  | 7,907 |  |  |
Other | 16,070 |  |  | 15,297 |  |  |
Total current liabilities | 69,140 |  |  | 128,849 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 343 |  |  | 360 |  |  |
Deferred income taxes | 57,523 |  |  | 57,752 |  |  |
Regulatory liabilities | 98,231 |  |  | 98,218 |  |  |
Unamortized tax credits | 14,348 |  |  | 14,820 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 69,459 |  |  | 69,364 |  |  |
Other | 23,707 |  |  | 22,038 |  |  |
Total deferred credits and other liabilities | 263,611 |  |  | 262,552 |  |  |
Total liabilities and shareholders’ equity | 861,129 |  |  | 877,832 |  |  |
Other subsidiaries | Reportable Legal Entities |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 0 |  |  | 0 |  |  |
Plant and equipment | 0 |  |  | 0 |  |  |
Less accumulated depreciation | 0 |  |  | 0 |  |  |
Construction in progress | 0 |  |  | 0 |  |  |
Utility property, plant and equipment, net | 0 |  |  | 0 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 0 |  |  | 0 |  |  |
Total property, plant and equipment, net | 0 |  |  | 0 |  |  |
Investment in wholly owned subsidiaries, at equity | 0 |  |  | 0 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 101 |  |  | 101 |  |  |
Restricted Cash and Cash Equivalents | 0 |  |  | 0 |  |  |
Advances to affiliates | 0 |  |  | 0 |  |  |
Customer accounts receivable, net | 0 |  |  | 0 |  |  |
Accrued unbilled revenues, net | 0 |  |  | 0 |  |  |
Other accounts receivable, net | 0 |  |  | 0 |  |  |
Fuel oil stock, at average cost | 0 |  |  | 0 |  |  |
Materials and supplies, at average cost | 0 |  |  | 0 |  |  |
Prepayments and other | 0 |  |  | 0 |  |  |
Regulatory assets | 0 |  |  | 0 |  |  |
Total current assets | 101 |  |  | 101 |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 0 |  |  | 0 |  |  |
Regulatory assets | 0 |  |  | 0 |  |  |
Other | 0 |  |  | 0 |  |  |
Total other long-term assets | 0 |  |  | 0 |  |  |
Total assets | 101 |  |  | 101 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 101 |  |  | 101 | 101 |  | 101
Cumulative preferred stock—not subject to mandatory redemption | 0 |  |  | 0 |  |  |
Long-term debt, net | 0 |  |  | 0 |  |  |
Total capitalization | 101 |  |  | 101 |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 0 |  |  | 0 |  |  |
Current portion of long-term debt | 0 |  |  | 0 |  |  |
Short-term borrowings from non-affiliates | 0 |  |  | 0 |  |  |
Short-term borrowings from affiliate | 0 |  |  | 0 |  |  |
Accounts payable | 0 |  |  | 0 |  |  |
Interest and preferred dividends payable | 0 |  |  | 0 |  |  |
Taxes accrued | 0 |  |  | 0 |  |  |
Regulatory liabilities | 0 |  |  | 0 |  |  |
Other | 0 |  |  | 0 |  |  |
Total current liabilities | 0 |  |  | 0 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 0 |  |  | 0 |  |  |
Deferred income taxes | 0 |  |  | 0 |  |  |
Regulatory liabilities | 0 |  |  | 0 |  |  |
Unamortized tax credits | 0 |  |  | 0 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 0 |  |  | 0 |  |  |
Other | 0 |  |  | 0 |  |  |
Total deferred credits and other liabilities | 0 |  |  | 0 |  |  |
Total liabilities and shareholders’ equity | 101 |  |  | 101 |  |  |
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |  |  |  |
Utility property, plant and equipment |  |  |  |  |  |  |
Land | 51,607 |  |  | 51,816 |  |  |
Plant and equipment | 7,353,841 |  |  | 7,240,288 |  |  |
Less accumulated depreciation | (2,758,544) |  |  | (2,690,157) |  |  |
Construction in progress | 214,487 |  |  | 193,074 |  |  |
Utility property, plant and equipment, net | 4,861,391 |  |  | 4,795,021 |  |  |
Nonutility property, plant and equipment, less accumulated depreciation | 6,955 |  |  | 6,956 |  |  |
Total property, plant and equipment, net | 4,868,346 |  |  | 4,801,977 |  |  |
Investment in wholly owned subsidiaries, at equity | 0 |  |  | 0 |  |  |
Current assets |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 63,995 |  |  | 11,022 | 23,361 |  |
Restricted Cash and Cash Equivalents | 29,376 |  |  | 30,872 | 0 |  |
Advances to affiliates | 0 |  |  | 0 |  |  |
Customer accounts receivable, net | 138,038 |  |  | 152,790 |  |  |
Accrued unbilled revenues, net | 100,601 |  |  | 117,227 |  |  |
Other accounts receivable, net | 10,415 |  |  | 11,568 |  |  |
Fuel oil stock, at average cost | 60,479 |  |  | 91,937 |  |  |
Materials and supplies, at average cost | 66,244 |  |  | 60,702 |  |  |
Prepayments and other | 37,929 |  |  | 116,980 |  |  |
Regulatory assets | 21,286 |  |  | 30,710 |  |  |
Total current assets | 528,363 |  |  | 623,808 |  |  |
Other long-term assets |  |  |  |  |  |  |
Operating lease right-of-use assets | 161,029 |  |  | 176,809 |  |  |
Regulatory assets | 661,284 |  |  | 684,370 |  |  |
Other | 112,985 |  |  | 101,718 |  |  |
Total other long-term assets | 935,298 |  |  | 962,897 |  |  |
Total assets | 6,332,007 |  |  | 6,388,682 |  |  |
Capitalization |  |  |  |  |  |  |
Total shareholders’ equity | 2,060,069 | $ 2,044,499 |  | 2,047,352 | $ 1,971,762 | $ 1,964,478 | $ 1,957,641
Cumulative preferred stock—not subject to mandatory redemption | 34,293 |  |  | 34,293 |  |  |
Long-term debt, net | 1,560,955 |  |  | 1,401,714 |  |  |
Total capitalization | 3,655,317 |  |  | 3,483,359 |  |  |
Current liabilities |  |  |  |  |  |  |
Current portion of operating lease liabilities | 64,534 |  |  | 63,707 |  |  |
Current portion of long-term debt | 14,000 |  |  | 95,953 |  |  |
Short-term borrowings from non-affiliates | 49,919 |  |  | 88,987 |  |  |
Short-term borrowings from affiliate | 0 |  |  | 0 |  |  |
Accounts payable | 107,078 |  |  | 187,770 |  |  |
Interest and preferred dividends payable | 20,659 |  |  | 20,728 |  |  |
Taxes accrued | 193,851 |  |  | 207,992 |  |  |
Regulatory liabilities | 26,067 |  |  | 30,724 |  |  |
Other | 71,691 |  |  | 67,305 |  |  |
Total current liabilities | 547,799 |  |  | 763,166 |  |  |
Deferred credits and other liabilities |  |  |  |  |  |  |
Operating lease liabilities | 102,570 |  |  | 113,400 |  |  |
Deferred income taxes | 371,052 |  |  | 377,150 |  |  |
Regulatory liabilities | 951,713 |  |  | 941,586 |  |  |
Unamortized tax credits | 115,006 |  |  | 117,868 |  |  |
Defined benefit pension and other postretirement benefit plans liability | 479,850 |  |  | 478,763 |  |  |
Other | 108,700 |  |  | 113,390 |  |  |
Total deferred credits and other liabilities | 2,128,891 |  |  | 2,142,157 |  |  |
Total liabilities and shareholders’ equity | $ 6,332,007 |  |  | $ 6,388,682 |  |  |

X
- Definition The carrying value of assets which are intended to be held for a period exceeding one year, excluding property, plant and equipment. + References No definition available. + Details
Name: | he_AssetsNoncurrentExcludingPropertyPlantAndEquipmentNet
Namespace Prefix: | he_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
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