CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 14.8	$ 16.8
Trade receivables, net of allowance of $0.3 in 2020 and $0.3 in 2019	72.7	90.0
Inventories, net	114.1	113.4
Prepaid and other current assets	52.0	51.8
Total current assets	253.6	272.0
Investments	2.4	2.2
Property, plant and equipment, net of accumulated depreciation of $217.1 in 2020 and $202.2 in 2019	533.6	468.8
Deferred income taxes	0.0	1.5
Right of use assets - operating leases, net	16.2	16.9
Other assets	97.3	91.5
Total assets	903.1	852.9
Current liabilities
Accounts payable, trade and other	42.4	83.1
Accrued and other current liabilities	33.8	36.4
Operating lease liabilities - current	2.0	2.1
Income taxes	0.0	0.9
Total current liabilities	78.2	122.5
Long-term debt	224.1	154.6
Operating lease liabilities - long-term	14.3	15.4
Environmental liabilities	6.4	6.4
Deferred income taxes	1.6	0.0
Other long-term liabilities	11.9	10.0
Commitments and contingent liabilities (Note 12)
Total current and long-term liabilities	336.5	308.9
Equity
Common stock; $0.001 par value; 2 billion shares authorized in 2018; 146,410,139 and 146,085,696 shares issued; 146,302,517 and 145,981,684 outstanding at September 30, 2020 and December 31, 2019, respectively	0.1	0.1
Capital in excess of par value of common stock	551.7	516.4
Retained earnings	62.7	76.6
Accumulated other comprehensive loss	(47.1)	(48.3)
Treasury stock, common; 107,622 and 104,012 shares at September 30, 2020 and December 31, 2019, respectively	(0.8)	(0.8)
Total equity	566.6	544.0
Total liabilities and equity	$ 903.1	$ 852.9