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CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Current Assets    
Cash and cash equivalents $ 171.0 $ 152.0
Accounts receivable, net 16.9 29.6
Inventories 80.0 64.8
Deferred costs associated with deferred revenue 137.2 151.9
Other current assets 9.1 7.8
Total current assets 414.2 406.1
Property, Plant and Equipment, Net 5.3 4.9
Deposits for surety bonds 5.7 5.7
Intangible assets 57.4 62.8
Other long-term assets 4.6 6.8
Total Assets 487.2 486.3
Current Liabilities    
Accounts payable and accrued liabilities 44.7 50.6
Payables under SWU purchase agreements 2.2 21.3
Inventories owed to customers and suppliers 7.0 4.9
Deferred revenue 275.2 283.2
Current debt 6.1 6.1
Total current liabilities 335.2 366.1
Long-term debt 101.8 108.0
Postretirement health and life benefit obligations 124.3 130.8
Pension benefit liabilities 75.9 124.4
Advances from customer, noncurrent 45.1 45.2
Other long-term liabilities 34.0 32.4
Total liabilities 716.3 806.9
Commitments and contingencies (Note 11)
Stockholders' Deficit    
Excess of capital over par value 125.4 85.0
Accumulated deficit (356.5) (407.7)
Accumulated other comprehensive income (loss), net of tax 0.5 0.8
Total stockholders' deficit (229.1) (320.6)
Total Liabilities and Stockholders’ Equity (Deficit) 487.2 486.3
Preferred Series B [Member]    
Stockholders' Deficit    
Preferred stock 0.1 0.1
Common Class A [Member]    
Stockholders' Deficit    
Common stock 1.3 1.1
Common Class B [Member]    
Stockholders' Deficit    
Common stock $ 0.1 $ 0.1