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Revenue (Tables) | 12 Months Ended
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Dec. 31, 2024
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | We present our operating revenues from external customers, in total and by amounts arising from contracts with customers and ARP arrangements, disaggregated by revenue source and segment for the years ended December 31, 2024, 2023 and 2022:
(in thousands) | 2024 |  | 2023 |  | 2022
Operating Revenues |  |  |  |  |
Electric Segment |  |  |  |  |
Retail: Residential | $ | 133,408 |  |  | $ | 135,570 |  |  | $ | 143,888 |
Retail: Commercial and Industrial | 311,968 |  |  | 312,551 |  |  | 318,494 |
Retail: Other | 7,838 |  |  | 7,719 |  |  | 7,918 |
Total Retail | 453,214 |  |  | 455,840 |  |  | 470,300 |
Transmission | 53,517 |  |  | 52,555 |  |  | 52,213 |
Wholesale | 11,077 |  |  | 12,459 |  |  | 18,539 |
Other | 6,707 |  |  | 7,505 |  |  | 8,647 |
Total Electric Segment | 524,515 |  |  | 528,359 |  |  | 549,699 |
Manufacturing Segment |  |  |  |  |
Metal Parts and Tooling | 303,077 |  |  | 351,267 |  |  | 338,865 |
Plastic Products and Tooling | 32,210 |  |  | 41,395 |  |  | 49,080 |
Scrap Metal | 7,305 |  |  | 10,119 |  |  | 10,038 |
Total Manufacturing Segment | 342,592 |  |  | 402,781 |  |  | 397,983 |
Plastics Segment |  |  |  |  |
PVC Pipe | 463,441 |  |  | 418,026 |  |  | 512,527 |
Total Operating Revenue | 1,330,548 |  |  | 1,349,166 |  |  | 1,460,209 |
Less: Noncontract Revenues Included Above |  |  |  |  |
Electric Segment - ARP Revenues | 575 |  |  | (4,310) |  |  | (9,266) |
Total Operating Revenues from Contracts with Customers | $ | 1,329,973 |  |  | $ | 1,353,476 |  |  | $ | 1,469,475 |

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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 + Details
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