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Intangible Assets (Notes) | 12 Months Ended
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Dec. 31, 2014
Intangible Assets Disclosure [Abstract] |
Intangible Assets Disclosure [Text Block] | INTANGIBLE ASSETS As described in Note 4, Fresh Start Accounting, intangible assets represent the fair value adjustment to the assets and liabilities for the Company's LEU segment. The amortizable intangible assets relate to backlog and customer relationships. The excess of the reorganization value over the fair value of identified tangible and intangible assets is reported separately on the consolidated balance sheet. The backlog intangible asset is amortized as backlog valued at emergence is reduced, principally as result of deliveries to customers. The customer relationships intangible asset is amortized using the straight-line method over the estimated average useful life of 15 years. Amortization expense is presented below gross profit on the consolidated statement of operations. Amortization of the intangible assets commenced in the fourth quarter of 2014.
| Successor
($ millions) | September 30, 2014 |  | Accumulated Amortization |  | December 31, 2014
Amortizable intangible assets: |  |  |  |  |
Backlog | $ | 54.6 |  |  | $ | (3.2 | ) |  | $ | 51.4 |
Customer relationships | 68.9 |  |  | (1.1 | ) |  | 67.8 |
Total | $ | 123.5 |  |  | $ | (4.3 | ) |  | $ | 119.2 |
Nonamortizable intangible assets: |  |  |  |  |
Excess reorganizational value | $ | 137.2 |  |  |  |  | $ | 137.2 |
The amount of amortization expense for intangible assets in each of the succeeding years is estimated to be as follows (in millions):
2015 | $ | 12.6 |
2016 | 12.4 |
2017 | 10.4 |
2018 | 9.7 |
2019 | 9.6 |
Thereafter | 64.5 |
| $ | 119.2 |

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- Definition The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16265-109275 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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