Public Utilities Amount of System Safety and Integrity Rider Moved to Base Rates

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- Definition

Public utilities, approved interim rate refund amount.

+ References

No definition available.

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- Definition

Public utilities interim rates effective days.

+ References

No definition available.

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- Definition

Percentage of public utility's approved debt to capital, including debt and equity.

+ References

No definition available.

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- Definition

Percentage of public utility's approved equity to capital, including debt and equity.

+ References

No definition available.

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- Definition

Amount of public utility's approved rate increase (decrease) by regulatory agency.

+ References

No definition available.

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- Definition

Percentage of public utility's approved return on equity.

+ 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

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- Definition

Percentage of public utility's requested debt to capital, including debt and equity.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's requested equity to capital, including debt and equity.

+ References

No definition available.

+ Details

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- Definition

Amount of public utility's requested rate increase (decrease) with regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Percentage of public utility's requested return on equity.

+ References

No definition available.

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- Definition

The amount for the individual regulatory liability as itemized in a table of regulatory liabilities as of the end of the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 405
-Name Accounting Standards Codification
-Section 25
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477571/980-405-25-1

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Regulatory Matters: Gas and Electric Utilities Recent Regulatory Activity (Details) - USD ($) $ in Millions	Jun. 12, 2026	Mar. 18, 2026	Mar. 02, 2026	Feb. 19, 2026	Dec. 09, 2025	Dec. 05, 2025	Jul. 24, 2025	Jun. 30, 2026	Dec. 31, 2025
Public Utilities, General Disclosures [Line Items]
Regulatory liability								$ 588.7	$ 588.2
Colorado Public Utilities Commission (CPUC) \| Black Hills Energy - Colorado Electric
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount	$ 26.7
Public utilities, requested equity capital structure, percentage	51.00%
Public utilities, requested debt capital structure, percentage	49.00%
Public Utilities, Requested Return on Equity, Percentage	10.50%
Kansas Corporation Commission (KCC) \| Black Hills Energy, Kansas Gas
Public Utilities, General Disclosures [Line Items]
Public Utilities, Approved Rate Increase (Decrease), Amount			$ 2.4				$ 10.8
Kansas Corporation Commission (KCC) \| Black Hills Energy, Kansas Gas \| GSRS Rider Revenue
Public Utilities, General Disclosures [Line Items]
Public Utilities Amount of System Safety and Integrity Rider Moved to Base Rates							$ 4.4
Nebraska Publc Service Commission (NPSC) \| Black Hills Energy - Nebraska Gas \| Settlement Agreement for a General Rate Increase
Public Utilities, General Disclosures [Line Items]
Public Utilities, Approved Equity Capital Structure, Percentage					51.00%
Public Utilities, Approved Debt Capital Structure, Percentage					49.00%
Public Utilities, Approved Return on Equity, Percentage					9.85%
Public Utilities, Approved Rate Increase (Decrease), Amount					$ 23.9
Public Utilities, Approved Interim Rate Refund Amount					$ 4.7
South Dakota Public Utilities Commission (SDPUC) \| Black Hills Energy - South Dakota Electric \| Rate Review Filed with the Regulatory Agency
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount				$ 50.6
Public utilities, requested equity capital structure, percentage				53.00%
Public utilities interim rates effective days				180 days
Public utilities, requested debt capital structure, percentage				47.00%
Public Utilities, Requested Return on Equity, Percentage				10.50%
Arkansas Public Service Commission \| Black Hills Energy - Arkansas Gas \| Rate Review Filed with the Regulatory Agency
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount						$ 29.4
Public utilities, requested equity capital structure, percentage						50.00%
Public utilities, requested debt capital structure, percentage						50.00%
Public Utilities, Requested Return on Equity, Percentage						10.50%
Wyoming Public Service Commission \| Black Hills Energy - South Dakota Electric \| Rate Review Filed with the Regulatory Agency
Public Utilities, General Disclosures [Line Items]
Public Utilities, Requested Rate Increase (Decrease), Amount		$ 5.1