Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
CASH FLOWS FROM OPERATING ACTIVITIES
Net income		$ 23.8	$ 16.6
Depreciation and amortization		24.8	25.4
Equity-based compensation expense		1.9	0.7
Deferred taxes		(1.3)	(2.2)
Defined benefit pension and other postretirement employee benefits		(0.5)	0.7
Loss on sale or impairment associated with assets		1.1	0.0
Accounts receivable		(6.4)	(10.6)
Inventories		(22.3)	(4.2)
Accounts payable and accrued liabilities		(31.7)	13.9
Other, net		1.4	0.7
Net cash flows provided by (used in) operating activities		(9.1)	41.1
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment, net 1	[1]	(21.5)	(7.9)
Net cash flows used in investing activities		(21.5)	(7.9)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from Short-Term Debt		12.0	0.0
Repayments of Short-term Debt		(12.0)	0.0
Repayments of long-term debt		(0.2)	(20.4)
Payment, Tax Withholding, Share-based Payment Arrangement		(4.2)	(1.5)
Payments for Repurchase of Common Stock		(1.7)	0.0
Payments of Debt Issuance Costs		(0.1)	0.0
Net cash flows used in financing activities		(6.3)	(21.9)
Increase (decrease) in cash, cash equivalents and restricted cash		(37.0)	11.2
Cash, cash equivalents and restricted cash at beginning of period		54.4	26.2
Cash, cash equivalents and restricted cash at end of period		17.4	37.5
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION:
Cash paid for interest, net of amounts capitalized		14.6	15.6
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH
Cash and cash equivalents		16.7	36.4
Restricted cash included in other current assets and other assets, net		0.7	1.1
Total cash, cash equivalents and restricted cash		$ 17.4	$ 37.5

[1] Capital expenditures of $7.0 million and $4.7 million that have not been paid as of March 31, 2023 and 2022 were excluded from the Statements of Cash Flows.