Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2012

Intangible Assets

Definite Lived Intangible Assets

(Dollars in thousands)	March 31, 2012						December 31, 2011
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	1,019	$	161	$	828	$	879	$	140	$	739
Technology		36,514		5,762		30,752		35,769		4,655		31,114
Covenant-not-to-compete		978		188		790		956		135		821
Customer Relationships		20,317		1,498		18,819		19,851		1,315		18,536
Total other intangible assets	$	58,828	$	7,609	$	51,189	$	57,455	$	6,245	$	51,210

Weighted Average Amortization Period, by Intangible Asset Class

The weighted average amortization period as of March 31, 2012, by intangible asset class, is presented in the table below:

Intangible Asset Class	Weighted Average Amortization Period
Trademarks and patents	8.9
Technology	6.0
Covenant not-to-compete	3.6
Customer relationships	9.3
Total other intangible assets	7.2

Changes in the Carrying Amount of Goodwill, by Segment

The changes in the carrying amount of goodwill for the period ending March 31, 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		360		-		1,821		-		-		2,181
March 31, 2012	$	22,957	$	-	$	79,178	$	-	$	2,224	$	104,359