Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the carrying amount of goodwill, by segment

The changes in the carrying amount of goodwill for the period ending December 31, 2020, by operating segment, were as follows:

(Dollars in thousands)	Advanced Connectivity Solutions		Elastomeric Material Solutions		Power Electronics Solutions		Other		Total
December 31, 2019	$	51,694	$	142,030	$	66,982	$	2,224	$	262,930
Foreign currency translation adjustment	—		991		6,251		—		7,242
December 31, 2020	$	51,694	$	143,021	$	73,233	$	2,224	$	270,172

Intangible assets

The changes in the carrying amount of other intangible assets for the two-year period ending December 31, 2020, were as follows:

	December 31, 2020						December 31, 2019
(Dollars in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Customer relationships	$	150,863	$	72,014	$	78,849	$	149,317	$	39,018	$	110,299
Technology	83,469		53,540		29,929		80,938		45,190		35,748
Trademarks and trade names	12,039		8,149		3,890		11,994		4,361		7,633
Covenants not to compete	1,340		827		513		1,340		505		835
Total definite-lived other intangible assets	247,711		134,530		113,181		243,589		89,074		154,515
Indefinite-lived other intangible asset	4,845		—		4,845		4,432		—		4,432
Total other intangible assets	$	252,556	$	134,530	$	118,026	$	248,021	$	89,074	$	158,947

Weighted average amortization period, by intangible asset class

The weighted average amortization period as of December 31, 2020, by definite-lived other intangible asset class, is presented in the table below:

Definite-Lived Other Intangible Asset Class	Weighted Average Remaining Amortization Period
Customer relationships	6.10
Technology	3.90
Trademarks and trade names	4.85
Covenants not to compete	1.27
Total definite-lived other intangible assets	5.45