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Cash flows (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Supplemental disclosures of cash flow information |  |
Interest paid to non-affiliates | $ 19,000 | $ 20,000
Income taxes paid (including refundable credits) | 4,000 | 1,000
Income taxes refunded (including refundable credits) | 0 | 45,000
Supplemental disclosures of noncash activities |  |
Common stock dividends reinvested in HEI common stock (financing) | 0 | 6,000
Loans transferred from held for investment to held for sale (investing) | 9,000 | 0
Common stock issued (gross) for director and executive/management compensation (financing) | 9,000 | 6,000
Obligations to fund low income housing investments (operating) | 1,000 | 0
AFUDC-equity (operating) | 2,399 | 1,739
Hawaiian Electric Company, Inc. and Subsidiaries |  |
Supplemental disclosures of cash flow information |  |
Interest paid to non-affiliates | 13,000 | 12,000
Income taxes paid (including refundable credits) | 2,000 | 0
Income taxes refunded (including refundable credits) | 0 | 20,000
Supplemental disclosures of noncash activities |  |
AFUDC-equity (operating) | 2,399 | 1,739
Estimated fair value of noncash contributions in aid of construction (investing) | 0 | 1,000
Change in unpaid invoices and accruals (investing) | $ (52,000) | $ (48,000)

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- Definition Represents the amount of additions to electric utility property, plant and equipment, which included unpaid invoices and other. + References No definition available. + Details
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- Definition Amount of expense for Affordable Housing Program (AHP) assessments required by the Federal Home Loan Bank Act of 1932. + References No definition available. + Details
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- Definition The amount of cash received during the period as refunds for the overpayment of taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3536-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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- Definition Value of loans and leases held in the entity's portfolio transferred to loans and leases held-for-sale in noncash transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 + Details
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