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Shareholders' equity - Reclassification out of AOCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Reclassifications out of accumulated other comprehensive income/(loss) |  |  |  |
Interest expense | $ 17,301 | $ 18,906 | $ 37,427 | $ 38,006
Less: amortization of prior service credit and net losses recognized during the period in net periodic benefit cost, net of tax benefits of $2,362, $3,691, $4,619 and $7,177 for the respective periods | 3,698 | 5,780 | 7,236 | 11,239
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,166, $3,359, $4,218 and $6,486 for the respective periods | (3,401) | (5,272) | (6,623) | (10,183)
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 $2,362, $3,691, $4,619 and $7,177 for the respective periods | 3,391 | 5,257 | 6,627 | 10,190
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,166, $3,359, $4,218 and $6,486 for the respective periods | (3,401) | (5,272) | (6,623) | (10,183)
Amount reclassified from AOCI |  |  |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |  |  |
Total reclassifications | (63) | 567 | 307 | 1,174
Amount reclassified from AOCI | Net unrealized gains (losses) on securities |  |  |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |  |  |
Net realized gains on securities | (360) | 0 | (360) | 0
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 | 0 | 59 | 54 | 118
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 $2,362, $3,691, $4,619 and $7,177 for the respective periods | 3,698 | 5,780 | 7,236 | 11,239
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,166, $3,359, $4,218 and $6,486 for the respective periods | (3,401) | (5,272) | (6,623) | (10,183)
Amount reclassified from AOCI | Hawaiian Electric Company, Inc. and Subsidiaries |  |  |  |
Reclassifications out of accumulated other comprehensive income/(loss) |  |  |  |
Total reclassifications | (10) | (15) | 4 | 7
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 $2,362, $3,691, $4,619 and $7,177 for the respective periods | 3,391 | 5,257 | 6,627 | 10,190
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,166, $3,359, $4,218 and $6,486 for the respective periods | $ (3,401) | $ (5,272) | $ (6,623) | $ (10,183)

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