XML 36 R23.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Basis of presentation (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Impact of Prior Period Financial Statements of the Adoption of ASU 2017-07 | The following table summarizes the impact to the prior period financial statements of the adoption of ASU No. 2017-07:
| Three months ended September 30, 2017 |  | Nine months ended September 30, 2017
(in thousands) | As previously filed | Adjustment from adoption of ASU No. 2017-07 | As currently reported |  | As previously filed | Adjustment from adoption of ASU No. 2017-07 | As currently reported
HEI Condensed Consolidated Income Statement |  |  |  |  |
Expenses |  |  |  |  |  |  |
Electric utility | $ | 511,693 |  | $ | (1,421 | ) | $ | 510,272 |  |  | $ | 1,483,194 |  | $ | (4,279 | ) | $ | 1,478,915 |
Bank | 47,525 |  | (212 | ) | 47,313 |  |  | 146,754 |  | (608 | ) | 146,146 |
Other | 4,422 |  | (295 | ) | 4,127 |  |  | 13,777 |  | (823 | ) | 12,954 |
Total expenses | 563,640 |  | (1,928 | ) | 561,712 |  |  | 1,643,725 |  | (5,710 | ) | 1,638,015 |
Operating income |  |  |  |  |  |  |
Electric utility | 87,076 |  | 1,421 |  | 88,497 |  |  | 191,061 |  | 4,279 |  | 195,340 |
Bank | 26,764 |  | 212 |  | 26,976 |  |  | 75,720 |  | 608 |  | 76,328 |
Other | (4,295 | ) | 295 |  | (4,000 | ) |  | (13,478 | ) | 823 |  | (12,655 | )
Total operating income | 109,545 |  | 1,928 |  | 111,473 |  |  | 253,303 |  | 5,710 |  | 259,013 |
Retirement defined benefits expense--other than service costs | — |  | (1,928 | ) | (1,928 | ) |  | — |  | (5,710 | ) | (5,710 | )
Hawaiian Electric Condensed Consolidated Income Statement |  |  |  |
Other operation and maintenance | 100,102 |  | (1,421 | ) | 98,681 |  |  | 306,716 |  | (4,279 | ) | 302,437 |
Total expense | 511,693 |  | (1,421 | ) | 510,272 |  |  | 1,483,194 |  | (4,279 | ) | 1,478,915 |
Operating income | 87,076 |  | 1,421 |  | 88,497 |  |  | 191,061 |  | 4,279 |  | 195,340 |
Retirement defined benefits expense--other than service costs | — |  | (1,421 | ) | (1,421 | ) |  | — |  | (4,279 | ) | (4,279 | )
Hawaiian Electric Condensed Consolidating Income Statement (in Note 3) |  |  |  |  |  |
Hawaiian Electric (parent only) |  |  |  |  |  |  |
Other operation and maintenance | 66,221 |  | (1,225 | ) | 64,996 |  |  | 204,460 |  | (3,812 | ) | 200,648 |
Total expense | 367,619 |  | (1,225 | ) | 366,394 |  |  | 1,058,382 |  | (3,812 | ) | 1,054,570 |
Operating income | 61,648 |  | 1,225 |  | 62,873 |  |  | 128,142 |  | 3,812 |  | 131,954 |
Retirement defined benefits expense--other than service costs | — |  | (1,225 | ) | (1,225 | ) |  | — |  | (3,812 | ) | (3,812 | )
Hawaii Electric Light |  |  |  |  |  |  |
Other operation and maintenance | 16,593 |  | 15 |  | 16,608 |  |  | 49,667 |  | 183 |  | 49,850 |
Total expense | 71,292 |  | 15 |  | 71,307 |  |  | 212,692 |  | 183 |  | 212,875 |
Operating income | 13,042 |  | (15 | ) | 13,027 |  |  | 32,334 |  | (183 | ) | 32,151 |
Retirement defined benefits expense--other than service costs | — |  | 15 |  | 15 |  |  | — |  | 183 |  | 183 |
Maui Electric |  |  |  |  |  |  |
Other operation and maintenance | 17,288 |  | (211 | ) | 17,077 |  |  | 52,589 |  | (650 | ) | 51,939 |
Total expense | 72,782 |  | (211 | ) | 72,571 |  |  | 212,120 |  | (650 | ) | 211,470 |
Operating income | 12,416 |  | 211 |  | 12,627 |  |  | 30,636 |  | 650 |  | 31,286 |
Retirement defined benefits expense--other than service costs | — |  | (211 | ) | (211 | ) |  | — |  | (650 | ) | (650 | )
ASB Statements of Income Data (in Note 4) |  |  |  |  |  |
Compensation and employee benefits | 23,724 |  | (212 | ) | 23,512 |  |  | 71,703 |  | (608 | ) | 71,095 |
Other expense | 5,050 |  | 212 |  | 5,262 |  |  | 14,066 |  | 608 |  | 14,674 |

X
- References No definition available. + Details
Name: | us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of changes in accounting principles, including adoption of new accounting pronouncements, that describes the new methods, amount and effects on financial statement line items. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22499-107794 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e765-108305 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.10-01.(b)(6)) -URI http://asc.fasb.org/extlink&oid=27015980&loc=d3e46468-122699 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22580-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=109236672&loc=d3e725-108305 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22583-107794 + Details
Name: | us-gaap_ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration