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Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-lived intangible assets
Gross Carrying Amount	$ 22,520	$ 24,494
Accumulated Amortization	(11,232)	(10,373)
Indefinite-lived intangible assets Goodwill	15,821	17,792	$ 13,873
Patents [Member]
Finite-lived intangible assets
Gross Carrying Amount	4,815	4,823
Accumulated Amortization	(4,799)	(4,730)
Land Use Rights [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,155	1,247
Accumulated Amortization	(173)	(164)
Trademark [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,713	1,888
Accumulated Amortization	(899)	(814)
Technology [Member]
Finite-lived intangible assets
Gross Carrying Amount	3,021	3,432
Accumulated Amortization	(860)	(734)
Customer Relationships [Member]
Finite-lived intangible assets
Gross Carrying Amount	11,816	13,104
Accumulated Amortization	$ (4,501)	$ (3,931)

X

- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

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