Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income (loss)	$ 31.7	$ (19.5)	$ 42.0	$ (54.0)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	28.5	25.3	56.4	52.0
Equity in income from unconsolidated affiliates, including dividends	(0.2)	(1.4)	0.3	(2.1)
Loss on sale or impairment of long-lived assets, net	0.7	0.5	0.7	0.6
Other operating credits and charges, net	11.4	0.0	11.4	11.6
Stock-based compensation related to stock plans	3.2	2.7	6.2	5.1
Exchange loss on remeasurement	(0.8)	0.7	(0.7)	4.3
Cash settlement of contingencies, net of accruals	(0.4)	0.0	(0.7)	0.5
Product warranty payments, net of accruals	(3.3)	(2.4)	(6.8)	(5.4)
Pension expense, net of contributions	1.0	2.4	1.4	4.4
Non-cash interest (income) expense, net	(0.2)	(0.1)	0.2	(0.1)
Other adjustments, net	0.0	0.6	0.0	0.8
(Increase) decrease in receivables	(3.3)	14.3	(51.1)	(16.6)
(Increase) decrease in inventories	18.9	37.3	(8.0)	3.1
(Increase) decrease in prepaid expenses and other current assets	(3.7)	(1.2)	(2.6)	0.8
Increase (decrease) in accounts payable and accrued liabilities	10.3	(21.4)	36.3	(4.2)
Increase (decrease) in income taxes	9.9	3.7	13.8	(3.3)
Increase in other operating liabilities	5.4	0.0	5.4	0.0
Net cash provided by (used in) operating activities	109.1	41.5	104.2	(2.5)
CASH FLOWS FROM INVESTING ACTIVITIES:
Property, plant, and equipment additions	(24.8)	(18.6)	(51.1)	(33.5)
Proceeds from sales of assets	0.1	0.0	0.1	0.4
Increase in restricted cash under letters of credit/credit facility	(0.3)	(5.4)	(0.3)	(5.4)
Other investing activities	(0.3)	0.0	(0.2)	0.0
Net cash used in investing activities	(25.3)	(24.0)	(51.5)	(38.5)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of long-term debt	(6.8)	0.0	(7.9)	(1.4)
Sale of common stock, net of cash payments under equity plans	(0.2)	0.3	(0.1)	0.4
Taxes paid related to net share settlement of equity awards	(7.2)	(2.9)	(8.1)	(5.3)
Net cash used in financing activities	(14.2)	(2.6)	(16.1)	(6.3)
EFFECT OF EXCHANGE RATE ON CASH AND CASH EQUIVALENTS	1.0	(2.2)	3.5	(4.4)
Net increase (decrease) in cash and cash equivalents	70.6	12.7	40.1	(51.7)
Cash and cash equivalents at beginning of period	404.2	468.3	434.7	532.7
Cash and cash equivalents at end of period	$ 474.8	$ 481.0	$ 474.8	$ 481.0