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v3.25.3

Segment Information (Segment Reporting Information) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |
Revenue | $ 74.9 | $ 57.7 | $ 302.5 | $ 290.4
Cost of sales | 79.2 | 48.8 | 220.0 | 240.7
Advanced technology license and decommissioning costs | 1.7 | 4.1 | 8.0 | 13.9
Selling, general and administrative | 8.9 | 9.6 | 25.9 | 24.6
Labor and Related Expense | 0.6 | 0.4 | 5.3 | 1.1
Amortization of Intangible Assets | 1.1 | 2.4 | 5.9 | 7.2
Nonoperating components of net periodic benefit expense (income) | 1.0 | 0.8 | 2.9 | (15.4)
Interest expense | 3.4 | 0.1 | 9.9 | 0.8
Investment income | (12.9) | (2.6) | (28.2) | (7.8)
Other Nonoperating Income | (0.1) | 0.0 | 0.0 | 0.1
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | (8.0) | (5.9) | 64.6 | 25.2
Gross Profit | (4.3) | 8.9 | 82.5 | 49.7
Low Enriched Uranium Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Cost of sales | 59.0 | 29.6 | 158.4 | 189.3
Gross Profit | (7.9) | 5.2 | 75.8 | 38.7
Technical Solutions Segment [Member] | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 81.2 | 57.7 | 314.9 | 290.4
Cost of sales | 85.6 | 48.8 | 230.7 | 240.7
Gross Profit | 3.5 | 3.7 | 8.4 | 11.0
Product [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 44.8 | 34.8 | 221.8 | 228.0
Cost of sales | 52.6 | 29.6 | 147.7 | 189.3
Product [Member] | Low Enriched Uranium Segment [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 51.1 | 34.8 | 234.2 | 228.0
Gross Profit | (7.8) | 5.2 | 74.1 | 38.7
Product [Member] | Low Enriched Uranium Segment [Member] | Intersegment Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 6.3 | 0.0 | 12.4 | 0.0
Cost of sales | 6.4 | 0.0 | 10.7 | 0.0
Gross Profit | (0.1) | 0.0 | 1.7 | 0.0
Separative Work Units [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 10.7 | 34.8 | 187.7 | 198.1
Uranium [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 34.1 | 0.0 | 34.1 | 29.9
Service [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | 30.1 | 22.9 | 80.7 | 62.4
Cost of sales | 26.6 | 19.2 | 72.3 | 51.4
Gross Profit | 3.5 | 3.7 | 8.4 | 11.0
Service [Member] | Intersegment Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenue | (6.3) | 0.0 | (12.4) | 0.0
Cost of sales | (6.4) | 0.0 | (10.7) | 0.0
Gross Profit | $ 0.1 | $ 0.0 | $ (1.7) | $ 0.0

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