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Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Finite-lived intangible assets
Gross Carrying Amount	$ 21,537	$ 22,045
Accumulated Amortization	(9,172)	(8,007)
Indefinite-lived intangible assets
Goodwill	14,972	15,537
Patents [Member]
Finite-lived intangible assets
Gross Carrying Amount	4,822	4,819
Accumulated Amortization	(4,360)	(4,135)
Land Use Rights [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,339	1,322
Accumulated Amortization	(142)	(125)
Trademark [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,625	1,674
Accumulated Amortization	(655)	(529)
Customer Backlog [Member]
Finite-lived intangible assets
Gross Carrying Amount	578	578
Accumulated Amortization	(578)	(578)
Technology [Member]
Finite-lived intangible assets
Gross Carrying Amount	2,816	2,924
Accumulated Amortization	(513)	(361)
Customer Relationships [Member]
Finite-lived intangible assets
Gross Carrying Amount	10,357	10,728
Accumulated Amortization	$ (2,924)	$ (2,279)

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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X

- 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=14024403&loc=d3e13816-109267



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-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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