Acquisitions (Details) $ in Millions	6 Months Ended
Jun. 30, 2020 USD ($)
Penonome Wind [Member]
Business Acquisition [Line Items]
Asset Acquisition, Purchase Price	$ 80

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.

No definition available.

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