CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 152.8	$ 130.7
Accounts receivable, net	14.1	21.1
Inventories	66.6	64.5
Deferred costs associated with deferred revenue	145.4	144.1
Other current assets	7.4	9.2
Total current assets	386.3	369.6
Property, Plant and Equipment, Net	4.4	3.7
Deposits for surety bonds	5.7	5.7
Intangible assets	65.2	69.5
Other long-term assets	6.6	7.4
Total Assets	468.2	455.9
Current Liabilities
Accounts payable and accrued liabilities	52.2	50.7
Payables under SWU purchase agreements	0.0	8.1
Inventories owed to customers and suppliers	7.8	5.6
Deferred revenue	249.7	266.3
Current debt	6.1	6.1
Total current liabilities	315.8	336.8
Long-term debt	108.0	114.1
Postretirement health and life benefit obligations	131.3	138.6
Pension benefit liabilities	121.2	141.8
Advances from customer, noncurrent	44.9	29.4
Other long-term liabilities	22.6	32.1
Total liabilities	743.8	792.8
Commitments and contingencies (Note 11)
Stockholders' Deficit
Excess of capital over par value	84.8	61.5
Accumulated deficit	(367.0)	(405.0)
Accumulated other comprehensive income (loss), net of tax	0.8	1.1
Total stockholders' deficit	(275.6)	(336.9)
Total Liabilities and Stockholders’ Equity (Deficit)	468.2	455.9
Preferred Series B [Member]
Stockholders' Deficit
Preferred stock	4.6	4.6
Common Class A [Member]
Stockholders' Deficit
Common stock	1.1	0.8
Common Class B [Member]
Stockholders' Deficit
Common stock	$ 0.1	$ 0.1