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Consolidated Statements of Changes in Common Stock Equity - HECO (USD $) In Thousands | Total | Hawaiian Electric Company, Inc. and Subsidiaries | Hawaiian Electric Company, Inc. and Subsidiaries Common stock. | Hawaiian Electric Company, Inc. and Subsidiaries Premium on capital stock | Hawaiian Electric Company, Inc. and Subsidiaries Retained earnings | Hawaiian Electric Company, Inc. and Subsidiaries Accumulated other comprehensive income (loss) | Hawaiian Electric Company, Inc. and Subsidiaries Comprehensive income
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 1,441,648 | $ 1,306,408 | $ 91,931 | $ 385,659 | $ 827,036 | $ 1,782 |
Balance (in shares) at Dec. 31, 2009 |  |  | 13,787 |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |
Net income for common stock |  | 35,694 |  |  | 35,694 |  | 35,694
Retirement benefit plans: |  |  |  |  |  |  |
Less: amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, net of tax benefits of $2,849 and $1,155 in June 2011 and June 2010, respectively | 1,959 | 1,813 |  |  |  | 1,813 | 1,813
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,801 and $1,080 in June 2011 and June 2010, respectively | (1,697) | (1,697) |  |  |  | (1,697) | (1,697)
Other comprehensive income |  |  |  |  |  | 116 |
Comprehensive income | 58,257 | 35,810 |  |  |  |  | 35,810
Common stock dividends | (57,586) | (26,887) |  |  | (26,887) |  |
Common stock issue expenses |  | (7) |  | (7) |  |  |
Balance at Jun. 30, 2010 | 1,466,633 | 1,315,324 | 91,931 | 385,652 | 835,843 | 1,898 |
Balance (in shares) at Jun. 30, 2010 |  |  | 13,787 |  |  |  |
Balance at Mar. 31, 2010 |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |
Net income for common stock |  | 17,642 |  |  |  |  |
Balance at Jun. 30, 2010 |  | 1,315,324 | 91,931 |  |  |  |
Balance (in shares) at Jun. 30, 2010 |  |  | 13,787 |  |  |  |
Balance at Dec. 31, 2010 | 1,483,637 | 1,337,398 | 92,224 | 389,609 | 854,856 | 709 |
Balance (in shares) at Dec. 31, 2010 |  |  | 13,831 |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |
Net income for common stock |  | 36,213 |  |  | 36,213 |  | 36,213
Retirement benefit plans: |  |  |  |  |  |  |
Less: amortization of net loss, prior service gain and transition obligation included in net periodic benefit cost, net of tax benefits of $2,849 and $1,155 in June 2011 and June 2010, respectively | 3,488 | 4,426 |  |  |  | 4,426 | 4,426
Less: reclassification adjustment for impact of D&Os of the PUC included in regulatory assets, net of taxes of $2,801 and $1,080 in June 2011 and June 2010, respectively | (4,352) | (4,352) |  |  |  | (4,352) | (4,352)
Other comprehensive income |  |  |  |  |  | 74 |
Comprehensive income | 58,230 | 36,287 |  |  |  |  | 36,287
Common stock dividends | (58,998) | (35,279) |  |  | (35,279) |  |
Balance at Jun. 30, 2011 | 1,512,207 | 1,338,406 | 92,224 | 389,609 | 855,790 | 783 |
Balance (in shares) at Jun. 30, 2011 |  |  | 13,831 |  |  |  |
Balance at Mar. 31, 2011 |  |  |  |  |  |  |
Comprehensive income (loss): |  |  |  |  |  |  |
Net income for common stock |  | 17,024 |  |  |  |  |
Balance at Jun. 30, 2011 |  | $ 1,338,406 | $ 92,224 | $ 389,609 |  |  |
Balance (in shares) at Jun. 30, 2011 |  |  | 13,831 |  |  |  |

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