Segment Information (Details) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) segments	Sep. 30, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segments			2
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	$ 294.6	$ 300.8	$ 774.1	$ 855.3
Reconciliation of Net Earnings from Segments [Abstract]
Interest expense	3.7	2.0	9.2	4.5
Loss before income taxes	(18.3)	(16.1)	(46.4)	(51.8)
(Benefit from) provision for income taxes	(3.4)	(1.5)	0.4	34.1
Net loss	(14.9)	(14.6)	(46.8)	(85.9)
Operating Segments
Reconciliation of Net Earnings from Segments [Abstract]
(Loss) earnings before interest and income taxes	1.8	(1.2)	3.6	(11.4)
Operating Segments | Mobile Consumer Electronics
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	189.2	182.5	456.2	513.2
Reconciliation of Net Earnings from Segments [Abstract]
(Loss) earnings before interest and income taxes	(15.9)	(21.7)	(43.1)	(62.4)
Operating Segments | Specialty Components
Reconciliation from Segment Totals to Consolidated [Abstract]
Revenues	105.4	118.3	317.9	342.1
Reconciliation of Net Earnings from Segments [Abstract]
(Loss) earnings before interest and income taxes	17.7	20.5	46.7	51.0
Corporate and Reconciling Items
Reconciliation of Net Earnings from Segments [Abstract]
Corporate expense / other	16.4	12.9	40.8	35.9
Segment Reconciling Items
Reconciliation of Net Earnings from Segments [Abstract]
Interest expense	$ (3.7)	$ (2.0)	$ (9.2)	$ (4.5)