CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 615.5	$ 439.1
Accounts receivable, net	385.3	319.3
Inventories	321.3	235.7
Other current assets	51.6	64.6
Total current assets	1,373.7	1,058.7
Property, plant and equipment	2,035.5	1,820.1
Less: accumulated depreciation and amortization	1,092.3	980.8
Property, plant and equipment, net	943.2	839.3
Operating lease right-of-use assets	68.3	70.1
Investments in affiliated companies	214.7	192.7
Goodwill	111.1	107.8
Intangible assets, net	30.5	29.8
Deferred income taxes	16.0	14.0
Pension and other postretirement benefits	12.9	4.3
Other noncurrent assets	23.4	24.7
Total Assets	2,793.8	2,341.4
Current liabilities:
Notes payable and other current debt	2.3	2.3
Accounts payable	213.1	156.8
Pension and other postretirement benefits	2.3	2.2
Accrued salaries, wages and benefits	106.0	73.0
Income taxes payable	26.0	6.4
Operating lease liabilities	10.1	9.6
Other current liabilities	143.6	91.3
Total current liabilities	503.4	341.6
Long-term debt	252.9	255.0
Deferred income taxes	10.4	15.5
Pension and other postretirement benefits	57.5	52.5
Operating lease liabilities	60.4	62.4
Deferred compensation benefits	22.9	17.8
Other long-term liabilities	31.8	23.4
Total Liabilities	939.3	768.2
Commitments and contingencies
Equity:
Preferred stock, 3.0 million shares authorized; 0 shares issued and outstanding in 2020 and 2019	0.0	0.0
Common stock, par value $0.25 per share; 200 million shares authorized; shares issued: 75.3 million in 2020 and 2019; shares outstanding: 74.0 million and 74.1 million in 2020 and 2019	18.8	18.8
Capital in excess of par value	267.3	272.7
Retained earnings	1,846.7	1,549.4
Accumulated other comprehensive loss	(110.6)	(149.6)
Treasury stock, at cost (1.3 million and 1.2 million shares in 2020 and 2019)	(167.7)	(118.1)
Total Equity	1,854.5	1,573.2
Total Liabilities and Equity	$ 2,793.8	$ 2,341.4