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Selected Balance Sheet Information (Tables) | 9 Months Ended
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Sep. 30, 2024
Selected Balance Sheet Information [Abstract] |
Account Receivable Schedule | Following is a summary of Accounts receivable, net included in the accompanying Consolidated Balance Sheets as of:
| September 30, 2024 |  | December 31, 2023 |
| (in millions) |
Billed Accounts Receivable | $ | 136.9 |  | $ | 198.5 |
Unbilled Revenue |  | 69.9 |  |  | 154.0 |
Less: Allowance for Credit Losses |  | (1.4 | ) |  | (2.2 | )
Account Receivable, net | $ | 205.4 |  | $ | 350.3 |
Financing Receivable, Current, Allowance for Credit Loss | Changes to allowance for credit losses for the nine months ended September 30, 2024 and 2023, respectively, were as follows:
| Balance at Beginning of Year |  | Additions Charged to Costs and Expenses |  | Recoveries and Other Additions |  | Write-offs and Other Deductions |  | Balance at September 30, |
| (in millions) |
2024 | $ | 2.2 |  | $ | 4.0 |  | $ | 2.8 |  | $ | (7.6 | ) | $ | 1.4 |
2023 | $ | 3.0 |  | $ | 7.2 |  | $ | 2.4 |  | $ | (10.8 | ) | $ | 1.8 |
Materials, Supplies and Fuel | The following amounts by major classification are included in Materials, supplies, and fuel on the accompanying Consolidated Balance Sheets as of:
| September 30, 2024 |  | December 31, 2023 |
| (in millions) |
Materials and supplies | $ | 103.9 |  | $ | 105.9 |
Fuel - Electric Utilities |  | 7.6 |  |  | 7.7 |
Natural gas in storage |  | 43.9 |  |  | 47.3 |
Total materials, supplies, and fuel | $ | 155.4 |  | $ | 160.9 |
Schedule of Accrued Liabilities | The following amounts by major classification are included in Accrued liabilities on the accompanying Consolidated Balance Sheets as of:
| September 30, 2024 |  | December 31, 2023 |
| (in millions) |
Accrued employee compensation, benefits, and withholdings | $ | 78.8 |  | $ | 74.8 |
Accrued property taxes |  | 47.7 |  |  | 52.7 |
Customer deposits and prepayments |  | 59.2 |  |  | 76.0 |
Accrued interest |  | 60.4 |  |  | 46.3 |
Other (none of which is individually significant) |  | 45.6 |  |  | 43.5 |
Total accrued liabilities | $ | 291.7 |  | $ | 293.3 |

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