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Financing: Debt Covenants (Additional Information) (Details)	Jun. 30, 2023
Line of Credit Facility [Line Items]
Consolidated indebtedness to capitalization ratio	0.59
Maximum
Line of Credit Facility [Line Items]
Consolidated indebtedness to capitalization ratio	0.65
Wyoming Electric
Line of Credit Facility [Line Items]
Consolidated indebtedness to capitalization ratio	0.52
Wyoming Electric | Maximum
Line of Credit Facility [Line Items]
Consolidated indebtedness to capitalization ratio	0.60

X

- 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.

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- Definition

Indebtedness divided by net capital.

+ References

No definition available.

+ Details

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- Details

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Balance Type:
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X

- Details

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