XML 54 R36.htm IDEA: XBRL DOCUMENT
v3.4.0.3

Shareholders' equity (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2016
Equity [Abstract] |
Schedule of accumulated other comprehensive income | Changes in the balances of each component of accumulated other comprehensive income/(loss) (AOCI) were as follows:
| HEI Consolidated |  | Hawaiian Electric Consolidated
(in thousands) | Net unrealized gains (losses) on securities |  | Unrealized gains (losses) on derivatives |  | Retirement benefit plans |  | AOCI |  | Unrealized gains on derivatives |  | Retirement benefit plans |  | AOCI
Balance, December 31, 2015 | $ | (1,872 | ) |  | $ | (54 | ) |  | $ | (24,336 | ) |  | $ | (26,262 | ) |  | $ | — |  |  | $ | 925 |  |  | $ | 925 |
Current period other comprehensive income | 7,428 |  |  | 1,056 |  |  | 316 |  |  | 8,800 |  |  | 1,002 |  |  | 14 |  |  | 1,016 |
Balance, March 31, 2016 | $ | 5,556 |  |  | $ | 1,002 |  |  | $ | (24,020 | ) |  | $ | (17,462 | ) |  | $ | 1,002 |  |  | $ | 939 |  |  | $ | 1,941 |
Balance, December 31, 2014 | $ | 462 |  |  | $ | (289 | ) |  | $ | (27,551 | ) |  | $ | (27,378 | ) |  | $ | — |  |  | $ | 45 |  |  | $ | 45 |
Current period other comprehensive income | 3,451 |  |  | 59 |  |  | 548 |  |  | 4,058 |  |  | — |  |  | 22 |  |  | 22 |
Balance, March 31, 2015 | $ | 3,913 |  |  | $ | (230 | ) |  | $ | (27,003 | ) |  | $ | (23,320 | ) |  | $ | — |  |  | $ | 67 |  |  | $ | 67 |
Schedule of reclassifications out of accumulated other comprehensive income/(loss) | Reclassifications out of AOCI were as follows:
|  | Amount reclassified from AOCI |  |
|  | Three months ended March 31 |  | Affected line item in the
(in thousands) |  | 2016 |  | 2015 |  | Statement of Income
HEI consolidated |  |  |  |  |  |
Derivatives qualified as cash flow hedges |  |  |  |  |  |  |  |
Interest rate contracts (settled in 2011) |  | $ | 54 |  |  | $ | 59 |  |  | Interest expense
Retirement benefit plan items |  |  |  |  |  |  |  |
Amortization of prior service credit and net losses recognized during the period in net periodic benefit cost |  | 3,537 |  |  | 5,459 |  |  | See Note 6 for additional details
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets |  | (3,222 | ) |  | (4,911 | ) |  | See Note 6 for additional details
Total reclassifications |  | $ | 369 |  |  | $ | 607 |  |  |
Hawaiian Electric consolidated |  |  |  |  |  |
Retirement benefit plan items |  |  |  |  |  |  |
Amortization of prior service credit and net losses recognized during the period in net periodic benefit cost |  | $ | 3,236 |  |  | $ | 4,933 |  |  | See Note 6 for additional details
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets |  | (3,222 | ) |  | (4,911 | ) |  | See Note 6 for additional details
Total reclassifications |  | $ | 14 |  |  | $ | 22 |  |  |

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

X
- Definition Tabular disclosure of information about items reclassified out of accumulated other comprehensive income (loss). + References No definition available. + Details
Name: | us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration