CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net income (loss)	$ (25.8)	$ 39.8
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	28.2	30.2
Stock-based compensation	3.4	4.8
Deferred income tax provision (benefit)	(11.3)	1.1
Asset impairment costs (Note 10)	52.3	0.0
Loss on debt extinguishment (Note 5)	1.9	0.0
Pension settlement and other benefit costs	0.0	0.1
Loss on asset dispositions	0.0	0.1
Provision for uncollectible accounts receivable	0.7	0.0
Non-cash effects of changes in liabilities for uncertain income tax positions	0.0	(0.5)
Decrease in working capital	28.7	1.4
Pension and other postretirement benefits	(0.3)	(2.2)
Long-term payroll taxes	2.9	0.0
Other	(0.3)	(0.4)
NET CASH PROVIDED BY OPERATING ACTIVITIES	80.4	74.4
INVESTING ACTIVITIES
Capital expenditures	(11.8)	(13.9)
Purchase of marketable securities	(0.1)	(0.3)
Other	(0.3)	(0.7)
NET CASH USED IN INVESTING ACTIVITIES	(12.2)	(14.9)
FINANCING ACTIVITIES
Long-term borrowings (Note 5)	291.2	155.5
Repayments of long-term debt (Note 5)	(294.3)	(188.8)
Debt issuance costs	(5.4)	(0.4)
Cash dividends paid	(23.9)	(22.9)
Shares purchased (Note 8)	(3.8)	(5.1)
NET CASH USED IN FINANCING ACTIVITIES	(36.2)	(61.7)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	0.3	(0.3)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	32.3	(2.5)
CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR	9.0	9.9
CASH AND CASH EQUIVALENTS, END OF PERIOD	41.3	7.4
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during period for interest, net of interest costs capitalized	9.7	6.0
Cash paid during period for income taxes	3.9	11.4
Non-cash investing activities:
Liability for equipment acquired	$ 2.4	$ 3.1