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Credit agreements and long-term debt (Details) | Mar. 31, 2019 USD ($) Institution
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Debt Disclosure [Abstract] |
Number of financial institutions | Institution | 8
Line of credit facility |
Credit agreement |
Revolving noncollateralized credit facility with a letter of credit sub-facility | $ 150,000,000
Line of credit facility | Hawaiian Electric Company, Inc. and Subsidiaries |
Credit agreement |
Revolving noncollateralized credit facility with a letter of credit sub-facility | $ 200,000,000

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- Definition Represents the number of financial institutions with which the entity entered into a revolving Non Collateralized credit agreement with a letter of credit sub-facility. + References No definition available. + Details
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- References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | credit
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- Details
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- Details
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Balance Type: |
Period Type: |