Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities
Net income	$ 139.1	$ 133.0	$ 93.1
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	39.3	40.1	42.7
Deferred taxes	3.6	(5.5)	6.4
Profit on disposal	0.0	0.0	(1.8)
Non-cash income of defined benefit pension plans	(3.3)	(2.5)	(3.5)
Stock option compensation	8.0	6.7	4.4
Changes in assets and liabilities, net of effects of acquired and divested companies:
Trade and other accounts receivable	(12.6)	(55.5)	(70.3)
Inventories	83.0	(98.5)	(62.0)
Prepaid expenses	(4.2)	4.6	(3.5)
Accounts payable and accrued liabilities	(26.9)	54.2	90.2
Plant closure provisions	4.0	1.1	(1.4)
Accrued income taxes	(25.9)	9.4	(3.2)
Unrecognized tax benefits	1.4	(2.9)	0.3
Other assets and liabilities	1.8	(2.5)	1.8
Net cash provided by operating activities	207.3	81.7	93.2
Cash Flows from Investing Activities
Capital expenditures	(62.1)	(39.6)	(39.1)
Proceeds on disposal of property, plant and equipment	0.1	0.2	2.9
Business combinations, net of cash acquired	(34.7)	0.0	0.0
Internally developed software	(15.1)	(2.7)	0.0
Net cash used in investing activities	(111.8)	(42.1)	(36.2)
Cash Flows from Financing Activities
Non-controlling interest	0.0	1.8	0.1
Proceeds from revolving credit facility	0.0	0.0	0.0
Repayments of revolving credit facility	0.0	0.0	0.0
Repayment of term loan	(2.3)	0.0	0.0
Repayment of finance leases	0.0	(0.1)	(0.6)
Refinancing costs	(1.4)	0.0	0.0
Dividend paid	(35.1)	(31.7)	(28.8)
Issue of treasury stock	0.9	2.2	10.1
Repurchase of common stock	(1.1)	(5.9)	(0.8)
Net cash used in financing activities	(39.0)	(33.7)	(20.0)
Effect of foreign currency exchange rate changes on cash	0.1	(0.6)	(0.5)
Net change in cash and cash equivalents	56.6	5.3	36.5
Cash and cash equivalents at beginning of year	147.1	141.8	105.3
Cash and cash equivalents at end of year	$ 203.7	$ 147.1	$ 141.8