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Regulatory Matters: Tax Cut and Jobs Act (Details) - Kansas Corporation Commission (KCC) - Kansas Gas - USD ($) $ in Millions		3 Months Ended	6 Months Ended
	Jan. 01, 2022	Jun. 30, 2022	Jun. 30, 2022
Public Utilities, General Disclosures [Line Items]
Settlement of Plan to Provide TCJA and State Tax Reform benefits to Customers Annually	$ 3.0
Number of Years TCJA and State Tax Reform Benefits to be Provide to Customers	3 years
Settlement Total of Plan to Provide TCJA and State Tax Reform benefits to Customers	$ 9.1
Annual TCJA-Related Customer Billing Credits		$ 0.7	$ 1.5

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Settlement of Plan to Provide TCJA and State Tax Reform benefits to Customers Annually

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Settlement Total of Plan to Provide TCJA and State Tax Reform benefits to Customers

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