Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill for the period ending March 31, 2018, by operating segment, were as follows:



(Dollars in thousands)	Advanced Connectivity Solutions		Elastomeric Material Solutions		Power Electronics Solutions		Other		Total
December 31, 2017	$	51,693	$	111,575	$	71,615	$	2,224	$	237,107
Foreign currency translation adjustment	—		23		1,922		—		1,945
March 31, 2018	$	51,693	$	111,598	$	73,537	$	2,224	$	239,052

Intangible Assets

Other Intangible Assets



	March 31, 2018						December 31, 2017
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	$	129,330	$	24,675	$	104,655	$	128,907	$	22,514	$	106,393
Technology	74,671		35,645		39,026		73,891		33,491		40,400
Trademarks and patents	10,214		2,413		7,801		10,213		2,157		8,056
Covenants not to compete	1,800		1,150		650		1,799		1,108		691
Total definite-lived other intangible assets	216,015		63,883		152,132		214,810		59,270		155,540
Indefinite-lived other intangible asset	4,866		—		4,866		4,738		—		4,738
Total other intangible assets	$	220,881	$	63,883	$	156,998	$	219,548	$	59,270	$	160,278

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average remaining amortization period as of March 31, 2018, by definite-lived other intangible asset class, is presented in the table below:



Definite-Lived Other Intangible Asset Class		Weighted Average Remaining Amortization Period
Customer relationships		9.0
Technology		4.8
Trademarks and patents		6.0
Covenants not to compete		1.9
Total definite-lived other intangible assets		7.7