Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Income Statement [Abstract]
Net revenue	$ 10.7	$ 15.7
Cost of goods sold	6.3	9.7
Gross profit	4.4	6.0
Operating expenses:
Selling, general and administrative	10.6	16.8
Research and development	3.4	3.0
Restructuring and other	6.8	0.6
Total	20.8	20.4
Operating loss from continuing operations	(16.4)	(14.4)
Other (income) expense:
Interest income	0.0	(0.1)
Interest expense	0.0	0.4
(Income) loss from short term investment	1.6	0.0
Other, net expense (income)	1.5	0.7
Total	(0.1)	1.0
Loss from continuing operations before income taxes	(16.3)	(15.4)
Income tax provision (benefit)	(1.6)	0.1
Loss from continuing operations	(14.7)	(15.5)
Discontinued operations:
Gain on sale of discontinued businesses, net of income taxes	2.4	0.0
Income (loss) from operations of discontinued businesses, net of income taxes	(3.1)	1.1
Reclassification of cumulative translation adjustment	(75.7)	0.0
Income (loss) from discontinued operations, net of income taxes	(76.4)	1.1
Net loss	$ (91.1)	$ (14.4)
Loss per common share — basic:
Continuing operations (in dollars per share)	$ (0.40)	$ (0.38)
Discontinued operations (in dollars per share)	(2.06)	0.03
Net loss (in dollars per share)	(2.46)	(0.35)
Loss per common share — diluted:
Continuing operations (in dollars per share)	(0.40)	(0.38)
Discontinued operations (in dollars per share)	(2.06)	0.03
Net loss (dollars per share)	$ (2.46)	$ (0.35)
Weighted average shares outstanding - basic (in shares)	37.1	41.0
Weighted average shares outstanding - diluted (in shares)	37.1	41.0