Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 125.6	$ 51.1
Short-term investments	36.7	183.7
Receivables:
Trade receivables, net	179.8	165.0
Other	25.6	15.5
Contract assets	54.9	0.0
Inventories	215.1	207.9
Prepaid expenses and other current assets	18.9	33.4
Total current assets	656.6	656.6
Property, plant and equipment, net	611.8	571.4
Deferred tax assets – net	35.9	72.0
Intangible assets, net	32.4	25.0
Goodwill	44.0	18.8
Other assets	38.6	41.4
Total	1,419.3	1,385.2
Current liabilities:
Accounts payable	121.4	90.0
Accrued salaries, wages and related expenses	40.1	42.6
Other accrued liabilities	44.0	40.5
Total current liabilities	205.5	173.1
Net liabilities of Salaried VEBA	32.4	31.9
Deferred tax liabilities	4.2	4.3
Long-term liabilities	66.4	60.0
Long-term debt	370.4	369.6
Total liabilities	678.9	638.9
Commitments and contingencies
Stockholders' equity:
Preferred stock, 5,000,000 shares authorized at both December 31, 2018 and December 31, 2017; no shares were issued and outstanding at December 31, 2018 and December 31, 2017	0.0	0.0
Common stock, par value $0.01, 90,000,000 shares authorized at both December 31, 2018 and December 31, 2017; 22,471,705 shares issued and 16,234,603 shares outstanding at December 31, 2018; 22,393,537 shares issued and 16,773,586 shares outstanding at December 31, 2017	0.2	0.2
Additional paid in capital	1,059.3	1,055.9
Retained earnings	150.2	85.5
Treasury stock, at cost, 6,237,102 shares at December 31, 2018 and 5,619,951 shares at December 31, 2017	(420.5)	(358.6)
Accumulated other comprehensive loss	(48.8)	(36.7)
Total stockholders' equity	740.4	746.3
Total	$ 1,419.3	$ 1,385.2