Area of Service Territory

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- Definition

Contract Length, PPA

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No definition available.

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- Definition

Jointly Owned Non-Utility Plant, Ownership Amount of Other Assets

+ References

No definition available.

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- Definition

Jointly Owned Non-Utility Plant Share

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No definition available.

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- Definition

Variable Interest Entity, Payable

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No definition available.

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- Definition

Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.

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No definition available.

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- Definition

Period end amount of property, plant and equipment (PPE) related to generation or processing owned by public utility.

+ References

No definition available.

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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

No definition available.

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- Definition

The amount of expense between the reporting entity and the Variable Interest Entity (VIE).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
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Summary of Consolidation and Significant Accounting Policy - Narrative (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($) mi²	Mar. 31, 2022 USD ($)	Dec. 31, 2022 USD ($)
Puget LNG [Member]
Summary of Consolidation Policy
Operating Costs and Expenses	$ 7.8	$ 2.2
Subsidiaries [Member]
Summary of Consolidation Policy
Area of Service Territory (in sqmi) \| mi²	6,000
Variable Interest Entity, Measure of Activity, Expense	$ 29.7	$ 3.9
Variable Interest Entity, Payable	$ 7.0		$ 3.9
Subsidiaries [Member] \| Skookumchuck Wind Energy Project
Summary of Consolidation Policy
Contract Length, PPA	20 years
Subsidiaries [Member] \| Golden Hills Wind Farm
Summary of Consolidation Policy
Contract Length, PPA	20 years
Subsidiaries [Member] \| Clearwater Wind Project
Summary of Consolidation Policy
Contract Length, PPA	25 years
Subsidiaries [Member] \| Natural Gas, US Regulated [Member] \| Tacoma LNG [Member]
Summary of Consolidation Policy
Construction in Progress, Gross			245.7
Public Utilities, Property, Plant and Equipment, Generation or Processing	$ 242.5
Subsidiaries [Member] \| Tacoma LNG [Member]
Summary of Consolidation Policy
Jointly Owned Non-Utility Plant Share	43.00%
Puget LNG [Member]
Summary of Consolidation Policy
Jointly Owned Non-Utility Plant Share	57.00%
Puget LNG [Member] \| Natural Gas, US Regulated [Member] \| Tacoma LNG [Member]
Summary of Consolidation Policy
Jointly Owned Non-Utility Plant, Ownership Amount of Other Assets	$ 244.9
Construction in Progress, Gross			$ 249.1
Variable Interest Entity, Not Primary Beneficiary
Summary of Consolidation Policy
Equity Method Investments	$ 0.0