Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

The changes in the carrying amount of goodwill for the period ending September 30, 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
Acquisition	—		32,305			—			—		32,305
Foreign currency translation adjustment	—		(631		)	(2,477		)	—		(3,108		)
September 30, 2018	$	51,693	$	143,249		$	69,138		$	2,224	$	266,304

Intangible Assets

Other Intangible Assets



	September 30, 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	$	149,933	$	27,985	$	121,948	$	128,907	$	22,514	$	106,393
Technology	81,840		36,974		44,866		73,891		33,491		40,400
Trademarks and trade names	12,024		2,934		9,090		10,213		2,157		8,056
Covenants not to compete	1,340		200		1,140		1,799		1,108		691
Total definite-lived other intangible assets	245,137		68,093		177,044		214,810		59,270		155,540
Indefinite-lived other intangible asset	4,574		—		4,574		4,738		—		4,738
Total other intangible assets	$	249,711	$	68,093	$	181,618	$	219,548	$	59,270	$	160,278

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average remaining amortization period as of September 30, 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		7.7
Technology		4.4
Trademarks and trade names		5.1
Covenants not to compete		2.3
Total definite-lived other intangible assets		6.7