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Consolidated Statements of Comprehensive Income (Parenthetical) - HECO - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Retirement benefit plans: |  |  |
Net gains (losses) arising during the period, taxes (benefits) | $ 53,068 | $ (20,907) | $ 3,892
Amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, tax benefits | 6,665 | 8,247 | 3,512
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, (taxes) benefits | 59,429 | (13,825) | 5,610
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |
Retirement benefit plans: |  |  |
Net gains (losses) arising during the period, taxes (benefits) | 52,554 | (21,868) | 1,821
Amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, tax benefits | 6,750 | 7,474 | 3,312
Reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, (taxes) benefits | $ (59,429) | $ 13,825 | $ (5,610)

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- Definition Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit) Recognized In Net Periodic Benefit Cost, Reclassification Adjustment From AOCI Tax + References No definition available. + Details
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- Definition The amount of income taxes on the reclassification adjustments on pension and post retirement benefits for the accounting impact of the decisions issued by the Public Utilities Commission. + References No definition available. + Details
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- Definition Amount of tax expense (benefit) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580 + Details
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