Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 51.1	$ 55.2
Short-term investments	183.7	231.0
Receivables:
Trade receivables, net	165.0	137.7
Other	15.5	11.9
Inventories	207.9	201.6
Prepaid expenses and other current assets	33.4	18.5
Total current assets	656.6	655.9
Property, plant and equipment, net	571.4	530.9
Deferred tax assets – net	72.0	159.7
Intangible assets, net	25.0	26.4
Goodwill	18.8	37.2
Other assets	41.4	33.4
Total	1,385.2	1,443.5
Current liabilities:
Accounts payable	90.0	75.8
Accrued salaries, wages and related expenses	42.6	49.1
Other accrued liabilities	40.5	40.1
Total current liabilities	173.1	165.0
Net liabilities of Salaried VEBA	31.9	28.6
Deferred tax liabilities	4.3	3.3
Long-term liabilities	60.0	73.2
Long-term debt	369.6	368.7
Total liabilities	638.9	638.8
Commitments and contingencies
Stockholders’ equity:
Preferred stock, 5,000,000 shares authorized at both December 31, 2017 and December 31, 2016; no shares were issued and outstanding at December 31, 2017 and December 31, 2016	0.0	0.0
Common stock, par value $0.01, 90,000,000 shares authorized at both December 31, 2017 and December 31, 2016; 22,393,537 shares issued and 16,773,586 shares outstanding at December 31, 2017; 22,332,732 shares issued and 17,651,461 shares outstanding at December 31, 2016	0.2	0.2
Additional paid in capital	1,055.9	1,047.4
Retained earnings	85.5	75.2
Treasury stock, at cost, 5,619,951 shares at December 31, 2017 and 4,681,271 shares at December 31, 2016	(358.6)	(281.4)
Accumulated other comprehensive loss	(36.7)	(36.7)
Total stockholders’ equity	746.3	804.7
Total	$ 1,385.2	$ 1,443.5