Consolidated Statements of Cash Flows - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES FROM CONTINUING OPERATIONS
Income (loss) from continuing operations		$ 11.4	$ (0.1)	$ (0.5)
Adjustments to reconcile income (loss) from continuing operations to net cash (used) provided by operating activities from continuing operations:
Depreciation and amortization		30.2	30.8	28.2
Stock-based compensation		7.2	6.5	6.1
Gains on sales of assets, net		(2.4)	(14.7)	0.0
Deferred income taxes		(8.3)	(5.8)	6.9
Changes in operating assets and liabilities:
Accounts receivable		(23.2)	(3.4)	14.0
Inventories		(56.0)	(55.1)	14.7
Prepaid and other current assets		(11.1)	1.2	(6.6)
Accounts payable and accrued expenses		33.1	36.6	(4.1)
Other		(7.5)	(8.2)	(0.1)
Net cash (used) provided by operating activities from continuing operations		(26.6)	(12.2)	58.6
INVESTING ACTIVITIES FROM CONTINUING OPERATIONS
Purchases of property, plant and equipment		(26.9)	(22.3)	(20.3)
Proceeds from sales of assets		9.5	20.3	1.4
Business acquisitions, net of cash acquired		(23.3)	(5.4)	0.0
Net cash used by investing activities from continuing operations		(40.7)	(7.4)	(18.9)
FINANCING ACTIVITIES FROM CONTINUING OPERATIONS
Proceeds from (payments on) revolving credit facility, net		64.8	77.6	(29.3)
Payments on term loans and other debt		(3.6)	(6.3)	(13.0)
Proceeds from other long-term debt		3.5	2.3	5.5
Proceeds from (payments on) finance lease facilities, net		8.5	(0.3)	3.9
Proceeds from third-party financing arrangement		20.0	0.0	0.0
Dividends		(7.0)	(7.0)	(3.2)
Purchases of treasury stock		0.0	(2.5)	(7.5)
Payments of withholding taxes on stock awards		(1.6)	(3.0)	(1.2)
Net cash provided (used) by financing activities from continuing operations		84.6	60.8	(44.8)
DISCONTINUED OPERATIONS
Total (used) provided by operating activities	[1]	(1.0)	(31.1)	10.7
Total used by investing activities	[1]	(4.8)	(8.8)	(6.0)
Total used by financing activities	[1]	(3.4)	(0.9)	(2.5)
(Decrease) increase in cash and cash equivalents from discontinued operations	[1]	(9.2)	(40.8)	2.2
Effect of exchange rate changes on cash		(4.0)	(1.3)	1.9
Increase (decrease) in cash and cash equivalents		4.1	(0.9)	(1.0)
Cash and cash equivalents at beginning of year		54.1	55.0	56.0
Cash and cash equivalents at end of year		58.2	54.1	55.0
Income taxes paid (received), net		10.7	(1.0)	5.5
Interest paid		$ 34.5	$ 28.8	$ 28.3

[1] Our continuing operations exclude the results of our Aluminum Products business unit, which is held-for-sale as of December 31, 2022 and presented in discontinued operations for all periods presented.