XML 54 R33.htm IDEA: XBRL DOCUMENT
v3.19.1

Intangible Assets (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets and Excess Reorganization Value [Table Text Block] | Intangible asset balances are as follows (in millions):
| December 31, 2018 |  | December 31, 2017
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Amount
Sales order book | $ | 54.6 |  |  | $ | 28.0 |  |  | $ | 26.6 |  |  | $ | 54.6 |  |  | $ | 25.9 |  |  | $ | 28.7 |
Customer relationships | 68.9 |  |  | 19.5 |  |  | 49.4 |  |  | 68.9 |  |  | 14.9 |  |  | 54.0 |
Total | $ | 123.5 |  |  | $ | 47.5 |  |  | $ | 76.0 |  |  | $ | 123.5 |  |  | $ | 40.8 |  |  | $ | 82.7 |
Finite-lived Intangible Assets Amortization Expense [Table Text Block] | The amount of amortization expense for intangible assets in each of the succeeding years is estimated to be as follows (in millions):
2019 | $ | 5.4 |
2020 | 8.0 |
2021 | 8.8 |
2022 | 9.7 |
2023 | 8.3 |
Thereafter | 35.8 |
Total | $ | 76.0 |

X
- Definition Schedule of Intangible Assets and Excess Reorganization Value [Table Text Block] + References No definition available. + Details
Name: | leu_ScheduleofIntangibleAssetsandExcessReorganizationValueTableTextBlock
Namespace Prefix: | leu_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of amortization expense of assets, excluding financial assets, that lack physical substance, having a limited useful life. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration