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Segment Information
 9 Months Ended
Sep. 30, 2022
Segment Reporting [Abstract]  
Segment Information Segment Information
We classify our business into three segments, Electric, Manufacturing and Plastics, consistent with our business strategy, organizational structure and our internal reporting and review processes used by our chief operating decision maker to make decisions regarding allocation of resources, to assess operating performance and to make strategic decisions.
Certain assets and costs are not allocated to our operating segments. Corporate operating costs include items such as corporate staff and overhead costs, the results of our captive insurance company and other items excluded from the measurement of operating segment performance. Corporate assets consist primarily of cash and cash equivalents, prepaid expenses, investments and fixed assets. Corporate is not an operating segment, rather it is added to operating segment totals to reconcile to consolidated amounts.
Information for each segment and our unallocated corporate costs for the three and nine months ended September 30, 2022 and 2021 are as follows:
Three Months Ended September 30,Nine Months Ended September 30,
(in thousands)2022202120222021
Operating Revenue
Electric$142,747 $118,775 $404,112 $348,629 
Manufacturing98,767 89,977 306,921 250,085 
Plastics142,342 107,542 447,767 264,898 
Total$383,856 $316,294 $1,158,800 $863,612 
Net Income (Loss)
Electric$24,847 $22,528 $62,938 $55,547 
Manufacturing6,219 4,200 17,858 15,290 
Plastics55,982 28,410 170,788 60,102 
Corporate(2,809)(2,384)(9,405)(5,787)
Total$84,239 $52,754 $242,179 $125,152 
The following provides the identifiable assets by segment and corporate assets as of September 30, 2022 and December 31, 2021:
(in thousands)September 30,
2022		December 31,
2021
Identifiable Assets
Electric$2,347,461 $2,283,776 
Manufacturing253,819 251,044 
Plastics179,925 162,565 
Corporate116,699 57,445 
Total$2,897,904 $2,754,830