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Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended								6 Months Ended	12 Months Ended
		Jul. 01, 2015	Feb. 28, 2014	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Business Combination, Separately Recognized Transactions [Line Items]
Income (Loss) from Continuing Operations, Per Diluted Share				$ 0.19	$ 0.24	$ (0.08)	$ (0.14)	$ (0.07)	$ 0.05	$ 0.16	$ 0.06		$ 0.21	$ 0.19	$ 1.40
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent				$ 17.5	$ 20.9	$ (6.8)	$ (12.5)	$ (6.6)	$ 4.8	$ 13.3	$ 5.0		$ 19.1	$ 16.5	$ 119.6
Income (Loss) from Continuing Operations, Per Basic Share				$ 0.20	$ 0.24	$ (0.08)	$ (0.14)	$ (0.07)	$ 0.05	$ 0.16	$ 0.06		$ 0.22	$ 0.19	$ 1.41
Basic (loss) earnings per share (usd per share)				$ 0.21	$ (0.08)	$ (0.28)	$ (0.33)	$ (2.11)	$ (0.17)	$ (0.19)	$ (0.19)		(0.48)	(2.69)	(1.02)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share													(0.68)	(2.88)	(2.42)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share													$ (0.70)	$ (2.88)	$ (2.43)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent													$ (61.4)	$ (250.3)	$ (206.6)
Reconciliation of information used in computing basic and diluted earnings per share [Abstract]
Net (loss) earnings				$ 19.3	$ (7.6)	$ (24.6)	$ (29.4)	$ (187.0)	$ (14.9)	$ (16.1)	$ (15.8)		$ (42.3)	$ (233.8)	$ (87.0)
Basic earnings (loss) per common share:
Basic weighted average shares outstanding (in shares)	[1]												88,667,098	86,802,828	85,046,042
Diluted earnings (loss) per common share:
Basic weighted average shares outstanding (in shares)	[1]												88,667,098	86,802,828	85,046,042
Dilutive weighted average shares outstanding (in shares)	[1]												89,182,967	86,992,254	85,292,959
Diluted (loss) earnings per share (usd per share)				$ 0.22	$ (0.08)	$ (0.28)	$ (0.33)	$ (2.11)	$ (0.17)	$ (0.19)	$ (0.19)		$ (0.47)	$ (2.69)	$ (1.02)
Stock issued during period (in shares)			0.5
Weighted average number of anti-dilutive shares excluded from the calculation (in shares)													5,080,023	3,357,320	1,487,496
Audience, Inc.
Business Combination, Separately Recognized Transactions [Line Items]
Number of shares issued (in shares)		3,200,000
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable, Number of Shares for Unvested Equity Awards Assumed		461,371.00
Reconciliation of information used in computing basic and diluted earnings per share [Abstract]
Net (loss) earnings												$ 31.6
[1] Years Ended December 31, 2016 2015 2014Revenues$859.3 $849.6 $915.0Cost of goods sold529.2 534.6 551.8Restructuring charges - cost of goods sold1.5 2.7 7.7Gross profit328.6 312.3 355.5Research and development expenses100.5 92.8 64.1Selling and administrative expenses170.7 171.9 156.9Restructuring charges10.3 11.6 (0.1)Operating expenses281.5 276.3 220.9Operating earnings47.1 36.0 134.6Interest expense, net20.4 12.7 6.6Other (income) expense, net(4.1) 0.7 (4.5)Earnings before income taxes and discontinued operations30.8 22.6 132.5Provision for income taxes11.7 6.1 12.9Earnings from continuing operations19.116.5 119.6Loss from discontinued operations, net(61.4) (250.3) (206.6)Net loss$(42.3) $(233.8) $(87.0) Earnings per share from continuing operations: Basic$0.22 $0.19 $1.41Diluted$0.21 $0.19 $1.40 Loss per share from discontinued operations: Basic$(0.70) $(2.88) $(2.43)Diluted$(0.68) $(2.88) $(2.42) Net loss per share: Basic$(0.48) $(2.69) $(1.02)Diluted$(0.47) $(2.69) $(1.02) Weighted average common shares outstanding: Basic88,667,09886,802,828 85,046,042Diluted89,182,96786,992,254 85,292,959

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