CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash Flows from Operating Activities
Net income (loss)	$ 45.0	$ (36.5)
Adjustments to reconcile net income (loss) to net cash (used in) operating activities:
Depreciation and amortization	3.4	2.6
Interest on paid-in-kind toggle notes	0.0	0.7
Gain on sale of assets	0.0	(0.5)
Inventory valuation adjustments	0.0	2.3
Changes in operating assets and liabilities:
Accounts receivable – (increase) decrease	(10.1)	24.6
Inventories, net – (increase) decrease	0.2	(6.6)
Accounts payable and other liabilities – increase (decrease)	(1.8)	(15.8)
Payables under SWU purchase agreements – increase (decrease)	(5.1)	(31.1)
Deferred revenue, net of deferred costs – increase (decrease)	(19.3)	27.0
Accrued loss on long-term contract, increase (decrease)	(5.3)
Pension and postretirement liabilities - increase (decrease)	(16.6)	(11.1)
Other, net	1.2	(0.7)
Net Cash (Used in) Operating Activities	(8.4)	(45.1)
Cash Flows Provided by Investing Activities
Capital expenditures	(0.1)	0.0
Proceeds from sales of assets	0.0	0.5
Net Cash Provided by (Used in) Investing Activities	(0.1)	0.5
Cash Flows Used in Financing Activities
Payment of interest classified as debt	(3.1)	(3.1)
Exercise of stock options	0.2	0.0
Net Cash (Used in) Financing Activities	(2.9)	(3.1)
Decrease in cash, cash equivalents and restricted cash	(11.4)	(47.7)
Cash, cash equivalents and restricted cash, start of period	136.6	159.7
Cash, cash equivalents and restricted cash, end of period	125.2
Supplemental Cash Flow Information:
Interest paid	0.0	0.4
Conversion of interest payable-in-kind to long-term debt	0.0	$ 0.7
Termination benefit costs	$ (0.1)