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Long-term debt (Tables) | 12 Months Ended
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Dec. 31, 2013
Long-term Debt, Unclassified [Abstract] |
Schedule of long-term debt | The Utilities issued through a private placement the following notes:
(in millions) | Maturity | Hawaiian Electric | Hawaii Electric Light | Maui Electric | Hawaiian Electric Consolidated
3.83% Senior Notes 1 | July 1, 2020 | $ | — |  | $ | 14 |  | $ | — |  | $ | 14 |
4.45% Senior Notes 1 | December 1, 2022 | 40 |  | 12 |  | — |  | 52 |
4.84% Senior Notes 1 | October 1, 2027 | 50 |  | 30 |  | 20 |  | 100 |
5.65% Senior Notes 2 | October 1, 2043 | 50 |  | — |  | 20 |  | 70 |
Total |  | $ | 140 |  | $ | 56 |  | $ | 40 |  | $ | 236 |
1 | Proceeds were used in October 2013 to redeem the following special purpose revenue bonds (SPRBs) and refunding SPRBs of the same maturities issued by the Department of Budget and Finance of the State of Hawaii for the benefit of the Utilities in an aggregate principal amount of $166 million:
Series | Year of maturity
4.75% Refunding Series 2003A Bonds | 2020
5.00% Refunding Series 2003B Bonds | 2022
5.65% Series 1997A Bonds | 2027
2 | Proceeds were used by the respective utility to finance their capital expenditures and/or for the reimbursement of funds used for the payment of capital expenditures.
December 31 | 2013 |  |  | 2012 |
(dollars in thousands) |  |  |  |  |
Long-term debt of Utilities 1 | $ | 1,217,945 |  |  | $ | 1,147,872 |
HEI medium-term note 5.25%, due 2013 | — |  |  | 50,000 |
HEI medium-term note 6.51%, due 2014 | 100,000 |  |  | 100,000 |
HEI senior note 4.41%, due 2016 | 75,000 |  |  | 75,000 |
HEI senior note 5.67%, due 2021 | 50,000 |  |  | 50,000 |
HEI senior note 3.99%, due 2023 | 50,000 |  |  | — |
| $ | 1,492,945 |  |  | $ | 1,422,872 |
1 | See components of "Total long-term debt" and unamortized discount in Hawaiian Electric and subsidiaries' Consolidated Statements of Capitalization.

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- Definition Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(e),(f)) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823 + Details
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