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Consolidated Statements of Capitalization (Parenthetical) - HECO (USD $) | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | --- | ---
Common stock, authorized shares | 200,000,000 | 200,000,000 |
Common stock, outstanding shares | 96,038,328 | 94,690,932 |
Hawaiian Electric Company, Inc. and Subsidiaries |  |  |
Common stock, par value (in dollars per share) | $ 6.667 | $ 6.667 | $ 6.667
Common stock, authorized shares | 50,000,000 | 50,000,000 | 50,000,000
Common stock, outstanding shares | 14,233,723 | 13,830,823 | 13,786,959
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, C-4 1/4% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, D-5% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, E-5% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, H-5 1/4% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, l-5% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, J-4 3/4% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Cumulative preferred stock not subject to mandatory redemption, K-4.65% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 |
Hawaiian Electric Company, Inc. and Subsidiaries | Preferred Stock $20 Par Value |  |  |
Preferred stock, Authorized shares | 5,000,000 | 5,000,000 | 5,000,000
Preferred stock, par value (in dollars per share) | $ 20 | $ 20 | $ 20
Hawaiian Electric Company, Inc. and Subsidiaries | Preferred Stock $100 Par Value |  |  |
Preferred stock, Authorized shares | 7,000,000 | 7,000,000 | 7,000,000
Preferred stock, par value (in dollars per share) | $ 100 | $ 100 | $ 100
Hawaii Electric Light Company, Inc. (HELCO) | Cumulative preferred stock not subject to mandatory redemption, G-7 5/8% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 100 | $ 100 |
Maui Electric Company, Limited (MECO) | Cumulative preferred stock not subject to mandatory redemption, H-7 5/8% Series |  |  |
Preferred stock, par value (in dollars per share) | $ 100 | $ 100 |

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- Definition Face amount or stated value of common stock per share; generally not indicative of the fair market value per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 + Details
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- Definition Face amount or stated value per share of stock classified as temporary equity; generally not indicative of the fair market value per share. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 28 -Article 5 + Details
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- Definition The maximum number of securities classified as temporary equity that are permitted to be issued by an entity's charter and bylaws. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 3, 4, 5, 6, 7, 8 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 02 -Paragraph 28 -Subparagraph b Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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