Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2015



(Dollars in thousands)	September 30, 2015						December 31, 2014
	Gross Carrying Amount (1)		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount (1)		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	2,537	$	615	$	1,922	$	1,046	$	364	$	682
Technology	47,423		18,731		28,692		33,942		15,958		17,984
Covenant-not-to-compete	935		891		44		1,016		823		193
Customer relationships	50,282		7,781		42,501		19,123		4,406		14,717
Total definite lived intangible assets	101,177		28,018		73,159		55,127		21,551		33,576
Indefinite lived intangible assets	4,418		—		4,418		4,764		—		4,764
Total intangible assets	$	105,595	$	28,018	$	77,577	$	59,891	$	21,551	$	38,340

(1) Gross carrying amounts and accumulated amortization may differ from prior periods due to foreign exchange rate fluctuations.

The weighted average amortization period as of September 30, 2015, by intangible asset class, is presented in the table below:



Intangible Asset Class		Weighted Average Amortization Period (Years)
Trademarks and patents		4.5
Technology		5.0
Covenant not-to-compete		1.0
Customer relationships		6.3
Total definite lived intangible assets		5.7

The changes in the carrying amount of goodwill for the period ending September 30, 2015, by segment, were as follows:



(Dollars in thousands)	Advanced Connectivity Solutions		Elastomeric Material Solutions			Power Electronics Solutions			Other		Total
December 31, 2014	$	—	$	23,565		$	72,438		$	2,224	$	98,227
Foreign currency translation adjustment	—		(1,301		)	(5,659		)	—		(6,960		)
Arlon acquisition	52,444		33,893			—			—		86,337
September 30, 2015	$	52,444	$	56,157		$	66,779		$	2,224	$	177,604