CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 95.6	$ 127.1	$ 112.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	86.1	84.8	81.0
Amortization	3.8	5.2	4.2
Loss on debt extinguishment	0.0	0.0	0.2
Stock-based compensation	29.6	18.6	21.2
Pension settlement charge	50.4	0.0	0.0
Loss on sales of equipment	0.4	0.3	0.4
Deferred income taxes	(8.9)	7.0	1.7
Pension and other retirement plans, net	(28.8)	(25.0)	8.0
Equity in undistributed earnings of affiliates, net of dividends	(5.0)	(4.5)	(4.8)
Changes in assets/liabilities, net of acquisitions:
Increase in accounts receivable	(14.1)	(6.3)	(9.1)
Increase in inventories	(11.4)	(16.2)	(13.9)
Increase in other current assets	(2.6)	(11.7)	(0.6)
Increase (decrease) in accounts payable	17.2	(3.5)	4.6
Changes in other assets and liabilities	0.1	7.1	15.3
Net cash provided by operating activities	212.4	182.9	220.5
Cash flows from investing activities:
Capital expenditures	(131.6)	(111.9)	(151.9)
Acquisition of patents and other long-term assets	0.0	(0.2)	(3.9)
Sales and maturities of short-term investments	0.0	16.8	19.1
Purchases of short-term investments	0.0	(9.3)	(14.2)
Other, net	2.1	0.6	1.0
Net cash used in investing activities	(129.5)	(104.0)	(149.9)
Cash flows from financing activities:
Borrowings under revolving credit agreements	71.4	263.4	292.7
Repayments under revolving credit agreements	(71.4)	(283.4)	(311.0)
Debt issuance costs	(1.0)	0.0	0.0
Repayments of long-term debt	(27.4)	(2.3)	(30.5)
Issuance of long-term debt	0.0	0.0	43.2
Dividend payments	(32.4)	(29.1)	(26.7)
Contingent consideration payments	(0.1)	(0.3)	(0.1)
Proceeds from exercise of stock options and stock appreciation rights	12.7	14.3	21.7
Employee stock purchase plan contributions	3.2	2.8	2.5
Excess tax benefit from employee stock plans	9.1	7.9	8.3
Shares repurchased for employee tax withholdings	(5.6)	(4.1)	(5.2)
Net cash used in financing activities	(41.5)	(30.8)	(5.1)
Effect of exchange rates on cash	(22.1)	(22.8)	2.6
Net increase in cash and cash equivalents	19.3	25.3	68.1
Cash, including cash equivalents at beginning of period	255.3	230.0	161.9
Cash, including cash equivalents at end of period	274.6	255.3	230.0
Supplemental cash flow information:
Interest paid, net of amounts capitalized	14.7	16.7	16.9
Income taxes paid, net	33.1	37.4	34.4
Accrued capital expenditures	25.0	21.0	17.1
Dividends declared, not paid	$ 8.6	$ 7.8	$ 7.0