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Reconciliation of electric utility operating income per HEI and HECO consolidated statements of income (Tables) - HECO (Hawaiian Electric Company, Inc. and Subsidiaries) | 6 Months Ended
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Jun. 30, 2011
Hawaiian Electric Company, Inc. and Subsidiaries |
Schedule of reconciliation from segment operating income to subsidiary's operating income from regulated operations |
|  | Three months ended June 30 |  | Six months ended June 30 |
(in thousands) |  | 2011 |  | 2010 |  | 2011 |  | 2010 |
Operating income from regulated and nonregulated activities before income taxes (per HEI consolidated statements of income) |  | $ | 42,518 |  | $ | 41,435 |  | $ | 87,726 |  | $ | 84,044 |
Deduct: |  |  |  |  |  |  |  |  |
Income taxes on regulated activities |  | (11,160 | ) | (11,113 | ) | (22,770 | ) | (22,154 | )
Revenues from nonregulated activities |  | (1,086 | ) | (2,001 | ) | (2,120 | ) | (3,400 | )
Add: Expenses from nonregulated activities |  | 268 |  | 2,529 |  | 423 |  | 2,767 |
Operating income from regulated activities after income taxes (per HECO consolidated statements of income) |  | $ | 30,540 |  | $ | 30,850 |  | $ | 63,259 |  | $ | 61,257

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- Definition Tabular disclosure of all significant items in the reconciliation of operating income from the reportable segment of the holding company to the operating income from regulated operations of the entity's subsidiary. + Details
Name: | he_ReconciliationOfSegmentOperatingIncomeToSubsidiaryOperatingIncomeTableTextBlock
Namespace Prefix: | he
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration