CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 112.3	$ 80.7	$ 75.5
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	81.0	72.8	71.1
Amortization	4.2	4.1	4.6
Loss on debt extinguishment	0.2	11.6	0
Stock-based compensation	21.2	15.5	8.4
Loss (gain) on sales of equipment	0.4	1.7	(0.2)
Asset impairments	0	6.2	0
Deferred income taxes	1.7	5.3	2.9
Pension and Other Postretirement Benefit Expense	8.0	(2.7)	(4.5)
Equity in undistributed earnings of affiliates, net of dividends	(4.8)	(4.5)	(6.0)
Changes in assets/liabilities, net of acquisitions:
Increase in accounts receivable	(9.1)	(25.7)	(25.5)
Increase in inventories	(13.9)	(8.9)	(9.3)
(Increase) decrease in other current assets	(0.6)	5.8	(3.1)
Increase in accounts payable	4.6	5.8	24.6
Changes in other assets and liabilities	15.3	19.7	(7.8)
Net cash provided by operating activities	220.5	187.4	130.7
Cash flows from investing activities:
Capital expenditures	(151.9)	(131.3)	(95.4)
Acquisition of patents and other long-term assets	(3.9)	(0.7)	(1.4)
Sales and maturities of short-term investments	19.1	45.6	15.6
Purchases of short-term investments	(14.2)	(31.2)	(41.2)
Other, net	1.0	1.6	1.9
Net cash used in investing activities	(149.9)	(116.0)	(120.5)
Cash flows from financing activities:
Borrowings under revolving credit agreements	292.7	568.3	193.4
Repayments under revolving credit agreements	(311.0)	(502.6)	(199.9)
Debt issuance costs	0	(7.5)	(0.3)
Repayments of long-term debt	(30.5)	(215.9)	(0.7)
Long-term debt borrowings	43.2	168.1	0.2
Dividend payments	(26.8)	(24.9)	(23.2)
Proceeds from exercise of stock options and stock appreciation rights	21.7	8.7	3.9
Employee stock purchase plan contributions	2.5	2.2	1.9
Excess tax benefit from employee stock plans	8.3	4.9	3.5
Shares repurchased for employee tax withholdings	(5.2)	(4.7)	(3.5)
Net cash used in financing activities	(5.1)	(3.4)	(24.7)
Effect of exchange rates on cash	2.6	2.1	(3.9)
Net increase (decrease) in cash and cash equivalents	68.1	70.1	(18.4)
Cash, including cash equivalents at beginning of period	161.9	91.8	110.2
Cash, including cash equivalents at end of period	230.0	161.9	91.8
Supplemental cash flow information:
Interest paid, net of amounts capitalized	16.9	15.3	18.2
Income taxes paid, net	34.4	16.1	20.4
Accrued capital expenditures	17.1	54.3	33.8
Dividends declared, not paid	$ 7.0	$ 6.5	$ 6.1