Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

The changes in the carrying amount of other intangible assets for the period ending December 31, 2015, were as follows:

	December 31, 2015						December 31, 2014
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Trademarks and patents	$	2,543	$	718	$	1,825	$	1,046	$	364	$	682
Technology	47,724		19,681		28,043		33,942		15,958		17,984
Covenant-not-to-compete	943		943		—		1,016		823		193
Customer relationships	49,948		9,100		40,848		19,123		4,406		14,717
Total definite lived intangible assets	101,158		30,442		70,716		55,127		21,551		33,576
Indefinite lived intangible assets	4,303		—		4,303		4,764		—		4,764
Total intangible assets	$	105,461	$	30,442	$	75,019	$	59,891	$	21,551	$	38,340

Weighted average amortization period, by intangible asset class

The weighted average amortization period as of December 31, 2015, by intangible asset class, is presented in the table below:

Intangible Asset Class	Weighted Average Amortization Period
Trademarks and patents	3.7
Technology	4.1
Customer relationships	5.5
Total other intangible assets	4.9

Changes in the carrying amount of goodwill, by segment

The changes in the carrying amount of goodwill for the period ending December 31, 2015, by reportable segment, were as follows:

(Dollars in thousands)	Elastomeric Material Solutions			Advanced Connectivity Solutions		Power Electronics Solutions			Other		Total
December 31, 2014	$	23,565		$	—	$	72,438		$	2,224	$	98,227
Arlon acquisition	33,872			51,931		—			—		85,803
Foreign currency translation adjustment	(1,168		)	—		(7,409		)	—		(8,577		)
December 31, 2015	$	56,269		$	51,931	$	65,029		$	2,224	$	175,453