Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Amortization expense for the next five years, based on current intangible balances, is estimated to be as follows:

(in millions)
Q3 - Q4 2017	$	3.1
2018	6.2
2019	5.6
2020	4.6
2021	4.6

Goodwill

The following table provides the changes in carrying value of goodwill by reportable segment for the six months ended June 30, 2017:

(in millions)	Audio		Precision Devices			Total
Balance at December 31, 2016	$	708.7	$	185.9		$	894.6
Foreign currency translation	13.3		(0.1		)	13.2
Balance at June 30, 2017	$	722.0	$	185.8		$	907.8

Schedule of Intangible Assets

The gross carrying value and accumulated amortization for each major class of intangible assets are as follows:

	June 30, 2017				December 31, 2016
(in millions)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Amortized intangible assets:
Trademarks	$	0.3	$	0.2	$	0.3	$	0.2
Patents	42.9		21.7		42.9		19.3
Customer Relationships	159.5		153.8		156.2		152.8
Unpatented Technologies	66.5		66.3		92.2		73.9
Other	3.1		3.1		3.1		3.1
Total	272.3		245.1		294.7		249.3
Unamortized intangible assets:
Trademarks	32.0				32.0
Total intangible assets, net	$	59.2			$	77.4