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Consolidated Statements of Changes in Shareholders' Equity (USD $) | Total | Common stock | Retained earnings | Accumulated other comprehensive income (loss) | 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)
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2010 | $ 1,480,394,000 | $ 1,314,199,000 | $ 178,667,000 | $ (12,472,000) | $ 1,334,155,000 | $ 92,224,000 | $ 389,609,000 | $ 851,613,000 | $ 709,000
Balance (in shares) at Dec. 31, 2010 |  | 94,691,000 |  |  |  | 13,831,000 |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 138,230,000 |  | 138,230,000 |  | 99,986,000 |  |  | 99,986,000 |
Other comprehensive loss, net of tax benefits | (6,665,000) |  |  | (6,665,000) | (741,000) |  |  |  | (741,000)
Issuance of common stock: Dividend reinvestment and stock purchase plan | 21,217,000 | 21,217,000 |  |  | 39,999,000 |  |  |  |
Issuance of common stock: Dividend reinvestment and stock purchase plan (in shares) |  | 879,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans | 10,318,000 | 10,318,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans (in shares) |  | 468,000 |  |  |  |  |  |  |
Issuance of common stock: Expenses and other, net | 3,712,000 | 3,712,000 |  |  |  |  |  |  |
Issuance of common stock, net of expenses |  |  |  |  | 39,999,000 | 2,687,000 | 37,312,000 |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  | 403,000 |  |  |
Common stock dividends | (118,500,000) |  | (118,500,000) |  | (70,558,000) |  |  | (70,558,000) |
Ending Balance at Dec. 31, 2011 | 1,528,706,000 | 1,349,446,000 | 198,397,000 | (19,137,000) | 1,402,841,000 | 94,911,000 | 426,921,000 | 881,041,000 | (32,000)
Balance (in shares) at Dec. 31, 2011 |  | 96,038,000 |  |  |  | 14,234,000 |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 38,316,000 |  |  |  | 27,300,000 |  |  |  |
Ending Balance at Mar. 31, 2012 |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2011 | 1,528,706,000 | 1,349,446,000 | 198,397,000 | (19,137,000) | 1,402,841,000 | 94,911,000 | 426,921,000 | 881,041,000 | (32,000)
Balance (in shares) at Dec. 31, 2011 |  | 96,038,000 |  |  |  | 14,234,000 |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 138,658,000 |  | 138,658,000 |  | 99,276,000 |  |  | 99,276,000 |
Other comprehensive loss, net of tax benefits | (7,286,000) |  |  | (7,286,000) | (938,000) |  |  |  | (938,000)
Partial settlement of equity forward (in shares) |  | 1,300,000 |  |  |  |  |  |  |
Partial settlement of equity forward | 33,409,000 | 33,409,000 |  |  |  |  |  |  |
Issuance of common stock: Dividend reinvestment and stock purchase plan | 41,295,000 | 41,295,000 |  |  | 44,001,000 |  |  |  |
Issuance of common stock: Dividend reinvestment and stock purchase plan (in shares) |  | 1,560,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans | 8,196,000 | 8,196,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans (in shares) |  | 330,000 |  |  |  |  |  |  |
Issuance of common stock: Expenses and other, net | 4,547,000 | 4,547,000 |  |  |  |  |  |  |
Dividend equivalents paid on equity-classified awards | (101,000) |  | (101,000) |  |  |  |  |  |
Issuance of common stock, net of expenses |  |  |  |  | 44,001,000 | 2,877,000 | 41,124,000 |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  | 431,000 |  |  |
Common stock dividends | (120,150,000) |  | (120,150,000) |  | (73,044,000) |  |  | (73,044,000) |
Ending Balance at Dec. 31, 2012 | 1,593,865,000 | 1,403,484,000 | 216,804,000 | (26,423,000) | 1,472,136,000 | 97,788,000 | 468,045,000 | 907,273,000 | (970,000)
Balance (in shares) at Dec. 31, 2012 | 97,928,403 | 97,928,000 |  |  |  | 14,665,000 |  |  |
Beginning Balance at Sep. 30, 2012 |  |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 13,836,000 |  |  |  | 4,225,000 |  |  |  |
Ending Balance at Dec. 31, 2012 | 1,593,865,000 |  |  |  | 1,472,136,000 |  |  |  |
Balance (in shares) at Dec. 31, 2012 | 97,928,403 |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 33,679,000 |  |  |  | 24,429,000 |  |  |  |
Ending Balance at Mar. 31, 2013 |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2012 | 1,593,865,000 | 1,403,484,000 | 216,804,000 | (26,423,000) | 1,472,136,000 | 97,788,000 | 468,045,000 | 907,273,000 | (970,000)
Balance (in shares) at Dec. 31, 2012 | 97,928,403 | 97,928,000 |  |  |  | 14,665,000 |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 161,516,000 |  | 161,516,000 |  | 122,929,000 |  |  | 122,929,000 |
Other comprehensive loss, net of tax benefits | 9,673,000 |  |  | 9,673,000 | 1,578,000 |  |  |  | 1,578,000
Issuance of common stock: Dividend reinvestment and stock purchase plan | 41,692,000 | 41,692,000 |  |  | 78,499,000 |  |  |  |
Issuance of common stock: Dividend reinvestment and stock purchase plan (in shares) |  | 1,612,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans | 9,203,000 | 9,203,000 |  |  |  |  |  |  |
Issuance of common stock: Retirement savings and other plans (in shares) |  | 420,000 |  |  |  |  |  |  |
Issuance of common stock: Expenses and other, net | 338,000 | 338,000 |  |  |  |  |  |  |
Issuance of common stock, net of expenses |  |  |  |  | 78,499,000 | 5,092,000 | 73,407,000 |  |
Issuance of common stock, net of expenses (in shares) |  |  |  |  |  | 764,000 |  |  |
Common stock dividends | (122,626,000) |  | (122,626,000) |  | (81,578,000) |  |  | (81,578,000) |
Ending Balance at Dec. 31, 2013 | 1,727,070,000 | 1,488,126,000 | 255,694,000 | (16,750,000) | 1,593,564,000 | 102,880,000 | 541,452,000 | 948,624,000 | 608,000
Balance (in shares) at Dec. 31, 2013 | 101,259,800 | 101,260,000 |  |  |  | 15,429,000 |  |  |
Beginning Balance at Sep. 30, 2013 |  |  |  |  |  |  |  |  |
Increase (decrease) in stockholders' equity |  |  |  |  |  |  |  |  |
Net income for common stock | 39,013,000 |  |  |  | 31,990,000 |  |  |  |
Ending Balance at Dec. 31, 2013 | $ 1,727,070,000 |  |  |  | $ 1,593,564,000 |  |  |  |
Balance (in shares) at Dec. 31, 2013 | 101,259,800 |  |  |  |  |  |  |  |

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