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Commitments and Contingencies | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Commitments and Contingencies | COMMITMENTS AND CONTINGENCIES Investigations and Litigation Due to the nature of our business, we are, from time to time, involved in investigations, litigation, disputes or claims related to our business activities, including, among other things: •performance- or warranty-related matters under our customer and supplier contracts and other business arrangements; and •workers' compensation, employment, premises liability and other claims. Based upon our prior experience, we do not expect that any of these litigation proceedings, disputes and claims will have a material adverse effect on our consolidated financial condition, results of operations or cash flows. Environmental Matters We have been identified as a potentially responsible party at various cleanup sites under the Comprehensive Environmental Response, Compensation, and Liability Act, as amended ("CERCLA") and other environmental laws. These laws can impose liability for the entire cost of cleanup on any of the potentially responsible parties, regardless of fault or the lawfulness of the original conduct. Generally, however, where there are multiple responsible parties, a final allocation of costs is made based on the amount and type of wastes disposed of by each party and the number of financially viable parties, although this may not be the case with respect to any particular site. We have not been determined to be a major contributor of wastes to any of these sites. On the basis of the relative contribution of waste to each site by potentially responsible parties, as well as the financial solvency of other potentially responsible parties, we expect our share of the ultimate liability for the various sites will not have a material adverse effect on our consolidated financial condition, results of operations or cash flows in any given year. We perform significant amounts of work for the U.S. Government under both prime contracts and subcontracts and operate certain facilities that are licensed to possess and process special nuclear materials. As a result of these activities, we are subject to continuing reviews by governmental agencies, including the U.S. Environmental Protection Agency and the NRC. We are also involved in manufacturing activities at licensed facilities in Canada that are also subject to continuing reviews by governmental agencies in Canada, including the CNSC. The NRC's decommissioning regulations require our Nuclear Operations Group segment to provide financial assurance that it will be able to pay the expected cost of decommissioning its two licensed facilities at the end of their service lives. We provided financial assurance totaling $61.8 million during the years ended December 31, 2020 and 2019 with surety bonds for the ultimate decommissioning of these licensed facilities. These facilities have provisions in their government contracts pursuant to which substantially all of our decommissioning costs and financial assurance obligations are covered by the DOE, including the costs to complete the decommissioning projects underway at the facility in Erwin, Tennessee. The surety bonds noted above are to cover decommissioning required pursuant to work not subject to this DOE obligation. In Canada, the CNSC's decommissioning regulations require our Nuclear Power Group segment to provide financial assurance that it will be able to pay the expected cost of decommissioning its CNSC-licensed facilities at the end of their service lives. We provided financial assurance totaling $47.9 million and $47.0 million during the years ended December 31, 2020 and 2019, respectively, with letters of credit and surety bonds for the ultimate decommissioning of these licensed facilities. Our compliance with federal, foreign, state and local environmental control and protection regulations resulted in pre-tax charges of approximately $16.3 million, $15.9 million and $14.7 million in the years ended December 31, 2020, 2019 and 2018, respectively. In addition, compliance with existing environmental regulations necessitated capital expenditures of $1.2 million, $1.4 million and $1.7 million in the years ended December 31, 2020, 2019 and 2018, respectively. At December 31, 2020 and 2019, we had total environmental accruals (including asset retirement obligations) of $91.3 million and $90.8 million, respectively. Of our total environmental accruals at December 31, 2020 and 2019, $7.1 million and $10.4 million, respectively, were included in current liabilities. Inherent in the estimates of these accruals are our expectations regarding the levels of contamination, decommissioning costs and recoverability from other parties, which may vary significantly as decommissioning activities progress. Accordingly, changes in estimates could result in material adjustments to our operating results, and the ultimate loss may differ materially from the amounts that we have provided for in our consolidated financial statements.

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