CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 241.7	$ 206.9	$ 150.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	100.0	101.7	94.3
Amortization	3.4	2.7	2.4
Stock-based compensation	24.4	15.1	16.1
Non-cash restructuring charges	2.3	2.2	0.7
Pension settlement charge	3.5	0.0	0.0
Venezuela deconsolidation	0.0	0.0	11.1
Contingent consideration payments in excess of acquisition-date liability	(0.5)	(0.6)	0.0
Loss on sales of equipment	0.8	1.8	1.6
Deferred income taxes	15.3	0.9	41.7
Pension and other retirement plans, net	(2.6)	(7.9)	(6.9)
Equity in undistributed earnings of affiliates, net of dividends	(6.7)	(5.9)	(7.0)
Changes in assets/liabilities, net of acquisitions:
Increase in accounts receivable	(33.3)	(43.8)	(39.7)
Increase in inventories	(18.6)	(7.0)	(3.6)
Decrease (increase) in other current assets	2.6	(6.2)	0.3
Increase in accounts payable	25.3	0.4	12.6
Changes in other assets and liabilities	9.6	28.3	(11.0)
Net cash provided by operating activities	367.2	288.6	263.3
Cash flows from investing activities:
Capital expenditures	(126.4)	(104.7)	(130.8)
Purchase of investment in affiliated companies	(85.1)	0.0	0.0
Acquisition of business	18.9	0.0	0.0
Cash related to deconsolidated Venezuelan subsidiary	0.0	0.0	(6.0)
Other, net	2.4	3.9	3.2
Net cash used in investing activities	(228.0)	(100.8)	(133.6)
Cash flows from financing activities:
Borrowings under revolving credit agreements	108.5	0.0	0.0
Repayments of Lines of Credit	(136.3)	0.0	0.0
Issuance of long-term debt	90.0	0.0	0.0
Repayments of Long-term Debt	(0.1)	(0.1)	(34.9)
Debt issuance costs	(1.2)	0.0	0.0
Dividend payments	(45.1)	(42.1)	(39.1)
Contingent consideration payments up to amount of acquisition-date liability	0.0	0.0	(0.7)
Proceeds from stock-based compensation awards	25.1	27.4	35.7
Employee stock purchase plan contributions	5.4	4.9	4.4
Shares repurchased under share repurchase program	(83.1)	(70.8)	(74.4)
Net cash used in financing activities	(36.8)	(80.7)	(109.0)
Effect of exchange rates on cash	(0.7)	(5.6)	12.2
Net increase in cash and cash equivalents	101.7	101.5	32.9
Cash, including cash equivalents at beginning of period	337.4	235.9	203.0
Cash, including cash equivalents at end of period	439.1	337.4	235.9
Supplemental cash flow information:
Interest paid, net of amounts capitalized	8.6	8.4	8.0
Income taxes paid, net	47.5	42.0	31.0
Accrued capital expenditures	17.0	15.0	20.1
Dividends declared, not paid	11.8	11.3	10.4
Purchase of investment in affiliated companies, treasury stock	$ 4.9	$ 0.0	$ 0.0