Goodwill and Other Intangible Assets (Changes in Carrying Amount of Goodwill by Segment) (Detail) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Goodwill [Roll Forward]
Beginning balance	$ 264,885
Foreign currency translation adjustment	(1,955)
Ending balance	262,930
Advanced Connectivity Solutions
Goodwill [Roll Forward]
Beginning balance	51,694
Foreign currency translation adjustment	0
Ending balance	51,694
Elastomeric Material Solutions
Goodwill [Roll Forward]
Beginning balance	142,588
Foreign currency translation adjustment	(558)
Ending balance	142,030
Power Electronics Solutions
Goodwill [Roll Forward]
Beginning balance	68,379
Foreign currency translation adjustment	(1,397)
Ending balance	66,982
Other
Goodwill [Roll Forward]
Beginning balance	2,224
Foreign currency translation adjustment	0
Ending balance	$ 2,224

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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