Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Definite Lived Intangible Assets

(Dollars in thousands)	September 30, 2013						December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	1,057	$	280	$	777	$	1,065	$	227	$	838
Technology	37,246		11,969		25,277		36,479		8,394		28,085
Covenant-not-to-compete	1,032		549		483		1,042		358		684
Customer relationships	20,891		2,888		18,003		20,529		2,066		18,463
Total definite lived intangible assets	$	60,226	$	15,686	$	44,540	$	59,115	$	11,045	$	48,070

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average amortization period as of September 30, 2013, by intangible asset class, is presented in the table below:

Intangible Asset Class	Weighted Average Amortization Period
Trademarks and patents	9.8
Technology	6.8
Covenant not-to-compete	4.3
Customer relationships	9.7
Total other intangible assets	8.0

Changes in the Carrying Amount of Goodwill, by Segment

The changes in the carrying amount of goodwill for the period ending September 30, 2013, by reportable segment, is as follows:

(Dollars in thousands)	High Performance Foams			Printed Circuit Materials		Curamik Electronics Solutions		Power Distribution Systems		Other		Total
December 31, 2012	$	23,973		$	—	$	78,844	$	—	$	2,224	$	105,041
Foreign currency translation adjustment	(159		)	—		2,005		—		—		1,846
September 30, 2013	$	23,814		$	—	$	80,849	$	—	$	2,224	$	106,887