Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 121.6	$ 136.9
Accounts and notes receivable, net	91.3	78.3
Inventories, net	81.9	81.5
Income taxes receivable	1.8	2.3
Other current assets	19.7	12.8
Total current assets	316.3	311.8
Property, plant, and equipment, less accumulated depreciation and amortization of $452.3 and $487.1, respectively	523.6	529.9
Operating lease assets	20.0	19.2
Finance lease assets	19.9	20.4
Prepaid pension costs	120.4	119.5
Investment in joint venture	46.2	41.2
Goodwill	166.5	160.7
Intangible assets, net	444.3	457.5
Income taxes receivable		0.6
Other non-current assets	58.1	57.7
Total assets	1,715.3	1,718.5
Current liabilities:
Current installments of long-term debt	25.0	25.0
Accounts payable and accrued expenses	115.5	136.5
Operating lease liabilities	5.2	4.8
Finance lease liabilities	2.0	2.0
Income taxes payable	8.5	4.0
Total current liabilities	156.2	172.3
Long-term debt, less current installments	684.4	690.5
Operating lease liabilities	15.0	14.6
Finance lease liabilities	18.2	18.8
Postretirement benefit liabilities	73.6	74.9
Pension benefit liabilities	39.9	40.4
Other long-term liabilities	72.4	76.5
Income taxes payable	21.1	21.2
Deferred income taxes	160.9	158.4
Total non-current liabilities	1,085.5	1,095.3
Shareholders' equity:
Common stock, $0.01 par value per share, 200 million shares authorized, 62,639,609 shares issued and 47,828,464 shares outstanding as of March 31, 2021 and 62,599,331 shares issued and 47,913,821 shares outstanding as of December 31, 2020	0.6	0.6
Capital in excess of par value	556.6	553.7
Retained earnings	895.0	869.8
Treasury stock, at cost, 14,811,145 shares as of March 31, 2021 and 14,685,510 shares as of December 31, 2020	(873.9)	(863.9)
Accumulated other comprehensive (loss)	(104.7)	(109.3)
Total shareholders' equity	473.6	450.9
Total liabilities and shareholders' equity	$ 1,715.3	$ 1,718.5