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Revenue and Contracts with Customers (Tables) | 3 Months Ended
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Mar. 31, 2022
Revenue from Contract with Customer [Abstract] |
Revenue from External Customers by Geographic Areas | The following table presents revenue from separative work units (“SWU”) and uranium sales disaggregated by geographical region based on the billing addresses of customers (in millions):
| Three Months Ended March 31, |  |
| 2022 |  | 2021 |  |  |  |
United States | $ | 12.6 |  |  | $ | 9.6 |  |  |  |  |
Foreign | 5.1 |  |  | 28.5 |  |  |  |  |
Revenue - SWU and uranium | $ | 17.7 |  |  | $ | 38.1 |  |  |  |  |
Contract with Customer, Asset and Liability |
|  | March 31, 2022 |  | December 31, 2021 |  | Year-To-Date Change
Accrued loss on HALEU Contract: |  |  |  |  |  |
Current - Accounts payable and accrued liabilities |  | $ | — |  |  | $ | 0.5 |  |  | $ | (0.5) |
Deferred revenue - current |  | $ | 287.8 |  |  | $ | 288.1 |  |  | $ | (0.3) |
Advances from customers - current |  | $ | 15.0 |  |  | $ | 15.0 |  |  | $ | — |
Advances from customers - noncurrent |  | $ | 45.1 |  |  | $ | 45.1 |  |  | $ | — |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph a -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 + Details
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