CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 199.8	$ 235.9
Accounts receivable, net	290.4	253.2
Inventories	215.7	215.2
Other current assets	37.6	39.2
Total current assets	743.5	743.5
Property, plant and equipment	1,775.3	1,745.8
Less: accumulated depreciation and amortization	917.5	890.8
Property, plant and equipment, net	857.8	855.0
Investments in affiliated companies	89.9	85.8
Goodwill	108.8	107.7
Deferred income taxes	24.9	25.7
Intangible assets, net	22.8	21.7
Other noncurrent assets	21.9	23.4
Total Assets	1,869.6	1,862.8
Current liabilities:
Notes payable and other current debt	0.0	0.0
Accounts payable	127.6	138.1
Pension and other postretirement benefits	2.3	2.2
Accrued salaries, wages and benefits	50.6	56.2
Income taxes payable	13.3	6.0
Other current liabilities	69.6	77.0
Total current liabilities	263.4	279.5
Long-term debt	198.0	197.0
Deferred income taxes	12.3	10.4
Pension and other postretirement benefits	55.0	53.4
Other long-term liabilities	35.6	42.6
Total Liabilities	564.3	582.9
Commitments and contingencies (Note 15)
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding	0.0	0.0
Common stock, par value $0.25 per share; 100.0 million shares authorized; shares issued: 75.3 million and 75.2 million; shares outstanding: 73.6 million and 73.9 million	18.8	18.8
Capital in excess of par value	308.5	309.3
Retained earnings	1,222.8	1,178.2
Accumulated other comprehensive loss	(95.8)	(117.3)
Treasury stock, at cost (1.7 million and 1.3 million shares)	(149.0)	(109.1)
Total Equity	1,305.3	1,279.9
Total Liabilities and Equity	$ 1,869.6	$ 1,862.8