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Regulatory Environment - PGL and NSG UEA Rider (Details) - Illinois Commerce Commission (ICC) $ in Millions | 1 Months Ended |
--- | --- | ---
May 31, 2023 USD ($) | Dec. 31, 2024 USD ($) Assurance
2018 Annual Uncollectible Expense Adjustment Rider Reconciliation | PGL |  |
Public Utilities, General Disclosures |  |
Refunds required to customers | $ 15.4 |
Refund period | 9 months |
2018 Annual Uncollectible Expense Adjustment Rider Reconciliation | NSG |  |
Public Utilities, General Disclosures |  |
Refunds required to customers | $ 0.7 |
Refund period | 9 months |
Uncollectible Expense Adjustment Rider Reconciliation - Open Years |  |
Public Utilities, General Disclosures |  |
Amount of assurance that UEA rider costs will be recoverable | Assurance |  | 0
Minimum annual costs included in UEA rider |  | $ 10.0
Maximum annual costs included in UEA rider |  | $ 40.0

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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. + Details
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- Definition Maximum combined annual costs of PGL and NSG included in the UEA rider between 2019 and 2023. + References No definition available. + Details
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- Definition Minimum combined annual costs of PGL and NSG included in the UEA rider between 2019 and 2023. + References No definition available. + Details
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