XML 37 R55.htm IDEA: XBRL DOCUMENT v2.4.1.9

Fresh Start Accounting Schedule of Fresh-Start Adjustments (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Sep. 30, 2014	Dec. 31, 2013	Mar. 15, 2013	Dec. 31, 2012
Current Assets
Property, plant and equipment, net		$ 3.7us-gaap_PropertyPlantAndEquipmentNet
Deferred income taxes	26.0us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent
Excess reorganization value				6.8us-gaap_Goodwill
Total Assets	1,183.7us-gaap_Assets		1,705.5us-gaap_Assets
Current Liabilities
Deferred taxes	26.0us-gaap_DeferredTaxLiabilitiesCurrent
Convertible senior notes (Predecessor)			530.0us-gaap_ShortTermBankLoansAndNotesPayable
Convertible preferred stock (Predecessor), 85,900 shares issued		113.9us-gaap_OtherLongTermDebtCurrent
Long-term debt	240.4us-gaap_LongTermDebt	240.4us-gaap_LongTermDebt
Liabilities Subject to Compromise, 3% Convertible Senior Notes and Accrued Interest		547.4us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest
Liabilities Subject to Compromise, Convertible Preferred Stock and Paid-in-Kind Dividends Payable		113.9us-gaap_LiabilitiesSubjectToCompromiseOtherLiabilities
Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities		1.6us-gaap_LiabilitiesSubjectToCompromiseAccountsPayableAndAccruedLiabilities
Adjustment, Assets
Inventories		35.4us-gaap_FreshStartAdjustmentIncreaseDecreaseInventories
Deferred costs associated with deferred revenue		73.9leu_FreshStartAdjustmentIncreaseDecreaseOtherDeferredCosts
Intangible assets		123.5us-gaap_FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Deferred revenue		94.0us-gaap_FreshStartAdjustmentIncreaseDecreaseOtherCurrentLiabilities
Liabilities Subject to Compromise, Debt and Accrued Interest		547.4us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest
Liabilities Subject to Compromise, Other Liabilities		113.9us-gaap_LiabilitiesSubjectToCompromiseOtherLiabilities
Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities		1.6us-gaap_LiabilitiesSubjectToCompromiseAccountsPayableAndAccruedLiabilities
Accumulated other comprehensive loss, net of tax		121.7us-gaap_FreshStartAdjustmentIncreaseDecreaseAccumulatedOtherComprehensiveIncomeLoss
Reorganization Adjustments [Member]
Current Liabilities
Total current liabilities		4.9us-gaap_LiabilitiesCurrent / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total liabilities not subject to compromise		245.3leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, 3% Convertible Senior Notes and Accrued Interest		(547.4)us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, Convertible Preferred Stock and Paid-in-Kind Dividends Payable		(113.9)us-gaap_LiabilitiesSubjectToCompromiseOtherLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities		(1.6)us-gaap_LiabilitiesSubjectToCompromiseAccountsPayableAndAccruedLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities subject to compromise		(662.9)us-gaap_LiabilitiesSubjectToCompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Adjustment, Assets
Cash and Cash Equivalents		(19.0)us-gaap_FreshStartAdjustmentIncreaseDecreaseCashAndCashEquivalents / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Other current assets		0.1us-gaap_FreshStartAdjustmentIncreaseDecreasePrepaidAndOtherCurrentAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total current assets		(18.9)us-gaap_FreshStartAdjustmentIncreaseDecreaseCurrentAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Other long-term assets		0.7us-gaap_FreshStartAdjustmentIncreaseDecreaseOtherAssetsNoncurrent / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total Assets		(18.2)us-gaap_FreshStartAdjustmentIncreaseDecreaseAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Accounts payable and accrued liabilities		4.9us-gaap_FreshStartAdjustmentIncreaseDecreaseAccruedLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Long-term debt		240.4us-gaap_FreshStartAdjustmentIncreaseDecreaseOtherLongTermDebt / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total liabilities not subject to compromise		245.3leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, Debt and Accrued Interest		(547.4)us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, Other Liabilities		(113.9)us-gaap_LiabilitiesSubjectToCompromiseOtherLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise, Accounts Payable and Accrued Liabilities		(1.6)us-gaap_LiabilitiesSubjectToCompromiseAccountsPayableAndAccruedLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Liabilities Subject to Compromise		(662.9)us-gaap_LiabilitiesSubjectToCompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total liabilities		(417.6)us-gaap_FreshStartAdjustmentIncreaseDecreaseLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Common stock		0.9us-gaap_FreshStartAdjustmentIncreaseDecreaseCommonStock / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Accumulated other comprehensive loss, net of tax		(2.2)us-gaap_FreshStartAdjustmentIncreaseDecreaseAccumulatedOtherComprehensiveIncomeLoss / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Retained earnings (deficit)		341.9us-gaap_FreshStartAdjustmentIncreaseDecreaseRetainedEarningsDeficit / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total stockholders' equity (deficit)		399.4us-gaap_FreshStartAdjustmentIncreaseDecreaseStockholdersEquity / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Total Liabilties and Stockholders' Equity (Deficit)		(18.2)us-gaap_FreshStartAdjustmentIncreaseDecreaseLiabilitiesAndStockholdersEquity / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember
Fresh Start Adjustments [Member]
Current Liabilities
Total current liabilities		(60.3)us-gaap_LiabilitiesCurrent / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total liabilities not subject to compromise		27.1leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Adjustment, Assets
Inventories		35.4us-gaap_FreshStartAdjustmentIncreaseDecreaseInventories / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Deferred costs associated with deferred revenue		(73.9)leu_FreshStartAdjustmentIncreaseDecreaseOtherDeferredCosts / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total current assets		(38.5)us-gaap_FreshStartAdjustmentIncreaseDecreaseCurrentAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Deferred taxes		26.4us-gaap_FreshStartAdjustmentIncreaseDecreaseDeferredIncomeTaxAssetsNoncurrent / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Intangible assets		123.5us-gaap_FreshStartAdjustmentIncreaseDecreaseAmortizableIntangibleAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Excess reorganization value		137.2us-gaap_FreshStartAdjustmentIncreaseDecreaseGoodwill / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total Assets		248.6us-gaap_FreshStartAdjustmentIncreaseDecreaseAssets / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Accounts payable and accrued liabilities		7.3us-gaap_FreshStartAdjustmentIncreaseDecreaseAccruedLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Deferred taxes		26.4us-gaap_FreshStartAdjustmentIncreaseDecreaseDeferredIncomeTaxLiabilitiesCurrent / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Deferred revenue		(94.0)us-gaap_FreshStartAdjustmentIncreaseDecreaseOtherCurrentLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Postretirement health and life benefit obligations		9.2us-gaap_FreshStartAdjustmentIncreaseDecreaseOtherPostretirementObligations / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Pension benefit liabilities		78.2us-gaap_FreshStartAdjustmentIncreaseDecreasePensionObligations / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total liabilities not subject to compromise		27.1leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total liabilities		27.1us-gaap_FreshStartAdjustmentIncreaseDecreaseLiabilities / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Common stock		(0.5)us-gaap_FreshStartAdjustmentIncreaseDecreaseCommonStock / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Excess of capital over par value		(1,221.9)us-gaap_FreshStartAdjustmentIncreaseDecreaseAdditionalPaidInCapital / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Treasury stock		38.8us-gaap_FreshStartAdjustmentIncreaseDecreasePreferredAndCommonStockHeldInTreasury / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Accumulated other comprehensive loss, net of tax		121.7us-gaap_FreshStartAdjustmentIncreaseDecreaseAccumulatedOtherComprehensiveIncomeLoss / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Retained earnings (deficit)		1,283.4us-gaap_FreshStartAdjustmentIncreaseDecreaseRetainedEarningsDeficit / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total stockholders' equity (deficit)		221.5us-gaap_FreshStartAdjustmentIncreaseDecreaseStockholdersEquity / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Total Liabilties and Stockholders' Equity (Deficit)		248.6us-gaap_FreshStartAdjustmentIncreaseDecreaseLiabilitiesAndStockholdersEquity / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_FreshStartAdjustmentsMember
Predecessor [Member]
Current Assets
Cash and cash equivalents		105.4us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember	314.2us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember		292.9us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Accounts receivable, net			163.0us-gaap_AccountsReceivableNetCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Inventories			967.6us-gaap_InventoryNet / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Deferred costs associated with deferred revenue			165.5us-gaap_OtherDeferredCostsNet / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Other current assets			21.7us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total current assets			1,632.0us-gaap_AssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Property, plant and equipment, net			7.9us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Deposits for surety bonds			39.8us-gaap_DepositsAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Other long-term assets			25.8us-gaap_OtherAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total Assets			1,705.5us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Current Liabilities
Accounts payable and accrued liabilities			114.5us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Payables under SWU purchase agreements			340.7us-gaap_AccountsPayableCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Inventories owed to customers and suppliers			499.7leu_InventoriesOwedToCustomersAndSuppliers / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Deferred revenue			195.9us-gaap_DeferredRevenueAndCreditsCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Convertible senior notes (Predecessor)			530.0us-gaap_ShortTermBankLoansAndNotesPayable / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Convertible preferred stock (Predecessor), 85,900 shares issued			113.9us-gaap_OtherLongTermDebtCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total current liabilities			1,794.7us-gaap_LiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Postretirement health and life benefit obligations			195.0us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Pension benefit liabilities			121.2us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Other long-term liabilities			52.8us-gaap_OtherLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total liabilities			2,163.7us-gaap_LiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Commitments and contingencies (Note 19)
Common stock			0.5us-gaap_CommonStockValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Excess of capital over par value			1,216.4us-gaap_AdditionalPaidInCapital / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Retained earnings (deficit)			(1,520.7)us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Treasury stock			(34.3)us-gaap_TreasuryStockValue / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Accumulated other comprehensive income (loss), net of tax			(120.1)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total stockholders’ equity (deficit)		59.3us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember	(458.2)us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember		(472.9)us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total Liabilities and Stockholders’ Equity (Deficit)			1,705.5us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Predecessor [Member] | Reorganization Adjustments [Member]
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Excess of capital over par value		0.4us-gaap_FreshStartAdjustmentIncreaseDecreaseAdditionalPaidInCapital / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Successor [Member]
Current Assets
Cash and cash equivalents	218.8us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	105.4us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Accounts receivable, net	58.9us-gaap_AccountsReceivableNetCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	90.0us-gaap_AccountsReceivableNetCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Inventories	462.2us-gaap_InventoryNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	499.4us-gaap_InventoryNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Deferred costs associated with deferred revenue	82.9us-gaap_OtherDeferredCostsNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	0us-gaap_OtherDeferredCostsNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Other current assets	19.6us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	21.6us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total current assets	842.4us-gaap_AssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	716.4us-gaap_AssetsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Property, plant and equipment, net	3.5us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	3.7us-gaap_PropertyPlantAndEquipmentNet / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Deferred income taxes	26.0us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	26.4us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Deposits for surety bonds	34.8us-gaap_DepositsAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	35.9us-gaap_DepositsAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Intangible assets	119.2us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	123.5us-gaap_IntangibleAssetsNetExcludingGoodwill / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Excess reorganization value	137.2us-gaap_Goodwill / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	137.2us-gaap_Goodwill / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Other long-term assets	20.6us-gaap_OtherAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	20.5us-gaap_OtherAssetsNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total Assets	1,183.7us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	1,063.6us-gaap_Assets / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Current Liabilities
Accounts payable and accrued liabilities	50.5us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	79.5us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Payables under SWU purchase agreements	140.1us-gaap_AccountsPayableCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	47.3us-gaap_AccountsPayableCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Deferred taxes	26.0us-gaap_DeferredTaxLiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	26.4us-gaap_DeferredTaxLiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Inventories owed to customers and suppliers	158.9leu_InventoriesOwedToCustomersAndSuppliers / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	173.1leu_InventoriesOwedToCustomersAndSuppliers / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Deferred revenue	100.9us-gaap_DeferredRevenueAndCreditsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	0.7us-gaap_DeferredRevenueAndCreditsCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total current liabilities	476.4us-gaap_LiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	327.0us-gaap_LiabilitiesCurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Long-term debt	240.4us-gaap_LongTermDebt / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	240.4us-gaap_LongTermDebt / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Postretirement health and life benefit obligations	211.4us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	211.6us-gaap_OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Pension benefit liabilities	179.3us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	174.1us-gaap_DefinedBenefitPensionPlanLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Other long-term liabilities	54.6us-gaap_OtherLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	51.2us-gaap_OtherLiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total liabilities not subject to compromise		1,004.3leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total liabilities	1,162.1us-gaap_LiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	1,004.3us-gaap_LiabilitiesNoncurrent / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Commitments and contingencies (Note 19)
Common stock	0.9us-gaap_CommonStockValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	0.9us-gaap_CommonStockValue / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Excess of capital over par value	58.6us-gaap_AdditionalPaidInCapital / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	58.4us-gaap_AdditionalPaidInCapital / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Retained earnings (deficit)	(42.3)us-gaap_RetainedEarningsAccumulatedDeficit / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Accumulated other comprehensive income (loss), net of tax	4.4us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total stockholders’ equity (deficit)	21.6us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	59.3us-gaap_StockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Total Liabilities and Stockholders’ Equity (Deficit)	1,183.7us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember	1,063.6us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Total liabilities not subject to compromise		1,004.3leu_Totalliabilitiesnotsubjecttocompromise / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Successor [Member] | Reorganization Adjustments [Member]
Adjustment, Liabilities and Stockholders' Equity (Deficit)
Excess of capital over par value		58.4us-gaap_FreshStartAdjustmentIncreaseDecreaseAdditionalPaidInCapital / us-gaap_FreshStartAdjustmentsTypeOfFreshStartAdjustmentAxis = leu_ReorganizationAdjustmentsMember / us-gaap_StatementScenarioAxis = us-gaap_SuccessorMember
Pre Eliminations [Member] | Predecessor [Member]
Current Assets
Cash and cash equivalents		124.4us-gaap_CashAndCashEquivalentsAtCarryingValue / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Accounts receivable, net		90.0us-gaap_AccountsReceivableNetCurrent / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Inventories		464.0us-gaap_InventoryNet / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Deferred costs associated with deferred revenue		73.9us-gaap_OtherDeferredCostsNet / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Other current assets		21.5us-gaap_PrepaidExpenseAndOtherAssetsCurrent / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Total current assets		773.8us-gaap_AssetsCurrent / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Property, plant and equipment, net		3.7us-gaap_PropertyPlantAndEquipmentNet / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
Deferred income taxes		0us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Accumulated other comprehensive income (loss), net of tax		(119.5)us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Total Liabilities and Stockholders’ Equity (Deficit)		833.2us-gaap_LiabilitiesAndStockholdersEquity / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Liabilities Subject to Compromise, Debt and Accrued Interest		547.4us-gaap_LiabilitiesSubjectToCompromiseDebtAndAccruedInterest / us-gaap_ConsolidationItemsAxis = leu_PreEliminationsMember / us-gaap_StatementScenarioAxis = us-gaap_PredecessorMember
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Cost of SWU and uranium inventories owed related to the transfer of title from USEC to customer at fabricator whereby fabricator has elected to order less material from USEC than is required. Amounts owed are satisfied when fabricator orders future bulk deliveries.

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Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge.

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Excess of issue price over par or stated value of the entity's capital stock and amounts received from other transactions involving the entity's stock or stockholders. Includes adjustments to additional paid in capital. Some examples of such adjustments include recording the issuance of debt with a beneficial conversion feature and certain tax consequences of equity instruments awarded to employees. Use this element for the aggregate amount of additional paid-in capital associated with common and preferred stock. For additional paid-in capital associated with only common stock, use the element additional paid in capital, common stock. For additional paid-in capital associated with only preferred stock, use the element additional paid in capital, preferred stock.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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