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Select Balance Sheet Information (Tables) | 3 Months Ended
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Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Receivables | Receivables as of March 31, 2022 and December 31, 2021 are as follows:
(in thousands) | March 31, 2022 |  | December 31, 2021
Receivables |  |  |
Trade | $ | 192,315 |  |  | $ | 142,297 |
Other | 8,139 |  |  | 10,591 |
Unbilled Receivables | 20,229 |  |  | 23,901 |
Total Receivables | 220,683 |  |  | 176,789 |
Less: Allowance for Credit Losses | (1,787) |  |  | (1,836) |
Receivables, net of allowance for credit losses | $ | 218,896 |  |  | $ | 174,953 |
Summary of Activity in Allowance for Credit Losses | The following is a summary of activity in the allowance for credit losses for the three months ended March 31, 2022 and 2021:
| March 31, |  | March 31,
(in thousands) | 2022 |  | 2021
Beginning Balance, January 1 | $ | 1,836 |  |  | $ | 3,215 |
Additions Charged to Expense | 210 |  |  | 211 |
Reductions for Amounts Written Off, Net of Recoveries | (259) |  |  | (443) |
Ending Balance, March 31 | $ | 1,787 |  |  | $ | 2,983 |
Schedule of Inventories | Inventories consist of the following as of March 31, 2022 and December 31, 2021:
(in thousands) | March 31, 2022 |  | December 31, 2021
Finished Goods | $ | 37,195 |  |  | $ | 39,903 |
Work in Process | 33,962 |  |  | 35,705 |
Raw Material, Fuel and Supplies | 74,700 |  |  | 72,882 |
Total Inventories | $ | 145,857 |  |  | $ | 148,490 |
Schedule of Investments | The following is a summary of our investments as of March 31, 2022 and December 31, 2021:
(in thousands) | March 31, 2022 |  | December 31, 2021
Corporate-Owned Life Insurance Policies | $ | 40,722 |  |  | $ | 41,078 |
Debt Securities | 8,959 |  |  | 9,202 |
Money Market Funds | 1,893 |  |  | 949 |
Mutual Funds | 6,285 |  |  | 5,432 |
Other Investments | 34 |  |  | 29 |
Total Investments | $ | 57,893 |  |  | $ | 56,690 |
Schedule of Property, Plant and Equipment | Major classes of property, plant and equipment as of March 31, 2022 and December 31, 2021 include:
(in thousands) | March 31, 2022 |  | December 31, 2021
Electric Plant |  |  |
Electric Plant in Service | $ | 2,776,778 |  |  | $ | 2,758,445 |
Construction Work in Progress | 72,347 |  |  | 74,926 |
Total Gross Electric Plant | 2,849,125 |  |  | 2,833,371 |
Less Accumulated Depreciation and Amortization | 829,499 |  |  | 817,302 |
Net Electric Plant | 2,019,626 |  |  | 2,016,069 |
Nonelectric Property, Plant and Equipment |  |  |
Nonelectric Property, Plant and Equipment in Service | 278,729 |  |  | 273,950 |
Construction Work in Progress | 14,365 |  |  | 16,611 |
Total Gross Nonelectric Property, Plant and Equipment | 293,094 |  |  | 290,561 |
Less Accumulated Depreciation and Amortization | 184,376 |  |  | 182,025 |
Net Nonelectric Property, Plant and Equipment | 108,718 |  |  | 108,536 |
Net Property, Plant and Equipment | $ | 2,128,344 |  |  | $ | 2,124,605 |

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