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Common Stock Common Stock (Dividends Declared) (Details) $ in Millions | Dec. 31, 2019 USD ($)
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Dividend Restrictions [Line Items] |
Amount Available For Dividend Distribution Without Affecting Covenants | $ 293.9
Avista Utilities [Member] |
Dividend Restrictions [Line Items] |
Regulatory Restrictions, Maximum Debt to Equity | 35.00%

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- Definition Regulatory Restrictions, Maximum Debt to Equity + References No definition available. + Details
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- Details
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