Condensed Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]
Net revenue	$ 175.0	$ 191.9	$ 532.5	$ 628.0
Cost of goods sold	143.8	155.8	433.7	494.6
Gross profit	31.2	36.1	98.8	133.4
Operating expenses:
Selling, general and administrative	42.5	46.3	130.2	142.1
Research and development	4.9	4.6	13.7	14.3
Goodwill impairment	35.4	0	35.4	0
Restructuring and other	4.2	11.7	11.5	18.2
Total	87.0	62.6	190.8	174.6
Operating loss from continuing operations	(55.8)	(26.5)	(92.0)	(41.2)
Other (income) expense
Interest income	(0.1)	(0.1)	(0.3)	(0.1)
Interest expense	0.7	0.7	1.9	2.0
Other, net expense	1.6	1.1	2.6	1.0
Total	2.2	1.7	4.2	2.9
Loss from continuing operations before income taxes	(58.0)	(28.2)	(96.2)	(44.1)
Income tax (benefit) provision	3.4	(2.0)	1.8	(0.5)
Loss from continuing operations	(61.4)	(26.2)	(98.0)	(43.6)
Discontinued operations:
Loss on sale of discontinued businesses, net of income taxes	0	(5.5)	(1.7)	(5.5)
Loss from operations of discontinued businesses, net of income taxes	0	(3.2)	(0.6)	(12.0)
Loss from discontinued operations, net of income taxes	0	(8.7)	(2.3)	(17.5)
Net loss	$ (61.4)	$ (34.9)	$ (100.3)	$ (61.1)
Loss per common share — basic:
Continuing operations (in dollars per share)	$ (1.49)	$ (0.65)	$ (2.39)	$ (1.08)
Discontinued operations (in dollars per share)	$ 0.00	$ (0.21)	$ (0.06)	$ (0.43)
Net loss - basic (in dollars per share)	$ (1.49)	$ (0.86)	$ (2.45)	$ (1.51)
Loss per common share — diluted:
Continuing operations (in dollars per share)	$ (1.49)	$ (0.65)	$ (2.39)	$ (1.08)
Discontinued operations (in dollars per share)	$ 0.00	$ (0.21)	$ (0.06)	$ (0.43)
Net loss - diluted (dollars per share)	$ (1.49)	$ (0.86)	$ (2.45)	$ (1.51)
Weighted average shares outstanding - basic (in shares)	41.2	40.5	41.0	40.5
Weighted average shares outstanding - diluted (in shares)	41.2	40.5	41.0	40.5