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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2022

Commitments and Contingencies Disclosure [Abstract]

Gas And Electric Supply Contractual Obligations

The following table lists the Company’s known specified gas and electric supply contractual obligations as of December 31, 2022.

						Payments Due by Period
Gas and Electric Supply Contractual Obligations (millions) as of December 31, 2022		Total				2023				2024				2025				2026				2027				2028 & Beyond
Gas Supply Contracts		$	514.6			$	66.5			$	47.4			$	45.2			$	44.3			$	43.8			$	267.4
Electric Supply Contracts			12.5				1.2				1.2				1.2				1.2				1.2				6.5
Total		$	527.1			$	67.7			$	48.6			$	46.4			$	45.5			$	45.0			$	273.9

Environmental Obligations Recognized by Company

The following table sets forth a summary of changes in the Company’s liability for Environmental Obligations for the years-ended December 31, 2022 and 2021.

		December 31,
Environmental Obligations (millions)		2022				2021
Total Balance at Beginning of Period		$	2.7			$	2.1
Additions			2.0				0.9
Less: Payments / Reductions			0.3				0.3
Total Balance at End of Period			4.4				2.7
Less: Current Portion			0.6				0.5
Noncurrent Balance at End of Period		$	3.8			$	2.2

X

- Definition

Tabular disclosure of contractual obligation by timing of payment due. Includes, but is not limited to, long-term debt obligation, lease obligation, and purchase obligation.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 303
-Paragraph (a)
-Subparagraph (5)

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- Definition

Tabular disclosure of environmental loss contingencies by individual site. Does not include loss contingencies that are not environmental in nature.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q1)
-URI https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 10
-Subparagraph (d)(2)
-URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 10
-Subparagraph (d)(1)
-URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 5.Y.Q2)
-URI https://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 410
-SubTopic 30
-Section 50
-Paragraph 10
-Subparagraph (d)(3)
-URI https://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

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