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Nature of Business and Basis of Presentation - General (Details) counterparty in Millions	3 Months Ended
	Mar. 31, 2022 counterparty MW	Jun. 30, 2021 MW
Business Acquisition [Line Items]
Generation capacity (in MW)	18,000
PJM Coal Generating Assets
Business Acquisition [Line Items]
Generation capacity (in MW)		1,600
Home
Business Acquisition [Line Items]
Customers | counterparty	6

X

- Definition

Number of customers

+ References

No definition available.

+ Details

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X

- Definition

The generation capacity of the entity's power generation facilities as of the balance sheet date, expressed in megawatts.

+ References

No definition available.

+ Details

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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.

+ Details

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X

- Details

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X

- Details

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Period Type: