Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for the period ending September 30, 2017, by segment, were as follows:

(Dollars in thousands)	Advanced Connectivity Solutions		Elastomeric Material Solutions		Power Electronics Solutions		Other		Total
December 31, 2016	$	51,693	$	91,531	$	62,983	$	2,224	$	208,431
Foreign currency translation adjustment	—		768		7,479		—		8,247
Purchase accounting adjustment	—		116		—		—		116
DSP acquisition	—		17,793		—		—		17,793
September 30, 2017	$	51,693	$	110,208	$	70,462	$	2,224	$	234,587

Intangible Assets

Other Intangible Assets

	September 30, 2017						December 31, 2016
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	10,161	$	1,882	$	8,279	$	6,825	$	1,156	$	5,669
Technology	73,779		31,382		42,397		68,880		24,365		44,515
Covenant not to compete	1,729		1,020		709		1,419		932		487
Customer relationships	128,357		20,262		108,095		96,148		14,311		81,837
Total definite-lived other intangible assets	214,026		54,546		159,480		173,272		40,764		132,508
Indefinite-lived other intangible assets	4,662		—		4,662		4,168		—		4,168
Total other intangible assets	$	218,688	$	54,546	$	164,142	$	177,440	$	40,764	$	136,676

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average amortization period as of September 30, 2017, by other intangible asset class, is presented in the table below:

Other Intangible Asset Class	Weighted Average Amortization Period (Years)
Trademarks and patents	7.3
Technology	6.1
Customer relationships	10.4
Covenant not to compete	3.4
Total definite-lived other intangible assets	9.1