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Shareholders' equity - Reclassification out of AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2016 | Mar. 31, 2015
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Interest expense | $ 20,126 | $ 19,100
Less: amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits of $2,257 and $3,486 for the respective periods | 3,538 | 5,459
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,052 and $3,127 for the respective periods | (3,222) | (4,911)
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Less: amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits of $2,257 and $3,486 for the respective periods | 3,236 | 4,933
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,052 and $3,127 for the respective periods | (3,222) | (4,911)
Amount reclassified from AOCI |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Total reclassifications | 369 | 607
Amount reclassified from AOCI | Derivatives qualified as cash flow hedges Interest rate contracts (settled in 2011) | Interest rate contracts |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Interest expense | 54 | 59
Amount reclassified from AOCI | Retirement benefit plans |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Less: amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits of $2,257 and $3,486 for the respective periods | 3,537 | 5,459
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,052 and $3,127 for the respective periods | (3,222) | (4,911)
Amount reclassified from AOCI | Hawaiian Electric Company, Inc. and Subsidiaries |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Total reclassifications | 14 | 22
Amount reclassified from AOCI | Hawaiian Electric Company, Inc. and Subsidiaries | Retirement benefit plans |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |
Less: amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits of $2,257 and $3,486 for the respective periods | 3,236 | 4,933
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,052 and $3,127 for the respective periods | $ (3,222) | $ (4,911)

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- Definition Reclassification adjustments on pension and post retirement benefits for the accounting impact of the decisions issued by the Public Utilities Commission, net of income taxes. + References No definition available. + Details
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- Definition The adjustment out of other comprehensive income for actuarial gains or losses, prior service gains or losses, and net transition asset or obligation recognized as a component of net periodic benefit cost during the period, after tax. + References No definition available. + Details
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- Definition Amount after tax of reclassification adjustments of 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004921&loc=d3e1436-108581 + Details
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