Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2012

Intangible Assets

Definite Lived Intangible Assets

(Dollars in thousands)	September 30, 2012						December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	1,030	$	199	$	831	$	879	$	140	$	739
Technology	35,752		7,355		$	28,397	35,769		4,655		31,114
Covenant-not-to-compete	998		293		$	705	956		135		821
Customer relationships	19,991		1,828		$	18,163	19,851		1,315		18,536
Total other intangible assets	$	57,771	$	9,675	$	48,096	$	57,455	$	6,245	$	51,210

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average amortization period as of September 30, 2012, by intangible asset class, is presented in the table below:

Intangible Asset Class	Weighted Average Amortization Period
Trademarks and patents	9.2
Technology	6.2
Covenant not-to-compete	3.8
Customer relationships	9.4
Total other intangible assets	7.4

Changes in the Carrying Amount of Goodwill, by Segment

The changes in the carrying amount of goodwill for the period ending September 30, 2012, by reportable segment, are as follows:

(Dollars in thousands)	High Performance Foams		Printed Circuit Materials		Curamik Electronics Solutions			Power Distribution Systems		Other		Total
December 31, 2011	$	22,597	$	—	$	77,357		$	—	$	2,224	$	102,178
Foreign currency translation adjustment	669		—		(215		)	—		—		454
September 30, 2012	$	23,266	$	—	$	77,142		$	—	$	2,224	$	102,632