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Business Segment Information: Segment and Corporate Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 9,130,654	$ 9,131,896
Corporate and Other
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	93,725	88,864
Electric Utilities
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	3,804,335	3,796,662
Gas Utilities
Segment Reporting, Asset Reconciling Item [Line Items]
Assets	$ 5,232,594	$ 5,246,370

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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No definition available.

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