Regulatory Environment - MGU (Details) $ in Millions	Jul. 01, 2020 USD ($)
MPSC \| MGU
Public Utilities, General Disclosures [Line Items]
Depreciation and interest expense approved for deferral	$ 5.0

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.

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