CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Activities
Net (loss) earnings	$ (430.1)	$ 150.4	$ 6.6
Adjustments to reconcile net (loss) earnings to cash from operating activities:
Depreciation and amortization	53.9	62.5	60.6
Stock-based compensation	28.6	32.1	17.3
Total impairment charges	470.9	4.0	7.6
Restructuring Costs	13.5	0.0	0.0
Non-cash interest expense and amortization of debt issuance costs	0.7	8.0	8.9
Deferred income taxes	1.6	(61.2)	(2.6)
Impaired Assets to be Disposed of by Method Other than Sale, Amount of Impairment Loss	0.0	0.0	1.7
Gain (Loss) on Disposition of Property Plant Equipment	0.5	0.0	0.3
Other, net	(5.9)	0.0	5.0
Changes in assets and liabilities (excluding effects of foreign exchange):
Receivables, net	11.1	(12.3)	29.0
Inventories, net	(22.8)	(20.7)	16.7
Prepaid and other current assets	2.0	(2.9)	(0.1)
Accounts payable	(41.2)	17.2	(17.5)
Accrued compensation and employee benefits	(15.0)	11.9	(2.1)
Other accrued expenses	(0.3)	1.8	2.6
Accrued taxes	1.3	(1.1)	(5.8)
Other non-current assets and non-current liabilities	17.5	(7.6)	(0.1)
Net cash provided by operating activities	86.3	182.1	128.1
Investing Activities
Acquisitions of business (net of cash acquired)	(0.7)	(78.5)	0.0
Additions to property, plant, and equipment	(32.1)	(48.6)	(31.9)
Proceeds from the sale of property, plant, and equipment	0.1	0.6	0.3
Payments for (Proceeds from) Investments	(0.4)	(3.5)	(3.5)
Proceeds from Sale of Short-term Investments	0.4	0.4	0.0
Net cash used in investing activities	(32.7)	(129.6)	(35.1)
Financing Activities
Debt instrument, face amount	0.0	172.5	0.0
Payments under revolving credit facility	(48.0)	0.0	(100.0)
Borrowings under revolving credit facility	23.0	70.0	100.0
Proceeds from exercise of stock-based awards	7.5	25.6	1.8
Payments for Repurchase of Common Stock	(44.0)	(44.5)	(16.2)
Payments of debt issuance costs	0.0	0.0	(1.4)
Tax on stock option exercises and restricted and performance stock unit vesting	(6.9)	(7.7)	(6.1)
Payments of finance lease obligations	(4.8)	(2.3)	(2.0)
Net cash used in financing activities	(73.2)	(131.4)	(23.9)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(1.1)	0.0	0.3
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(20.7)	(78.9)	69.4
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations	48.2	68.9	147.8
Supplemental information - cash paid during the year for:
Income taxes	6.2	16.1	16.8
Interest	$ 3.6	$ 7.4	$ 8.1