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Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2013 | Dec. 31, 2012
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Finite-lived intangible assets |  |
Gross Carrying Amount | $ 21,186 | $ 22,045
Accumulated Amortization | (8,739) | (8,007)
Indefinite-lived intangible assets |  |
Goodwill | 14,608 | 15,537
Patents [Member] |  |
Finite-lived intangible assets |  |
Gross Carrying Amount | 4,821 | 4,819
Accumulated Amortization | (4,285) | (4,135)
Land Use Rights [Member] |  |
Finite-lived intangible assets |  |
Gross Carrying Amount | 1,291 | 1,322
Accumulated Amortization | (134) | (125)
Trademark [Member] |  |
Finite-lived intangible assets |  |
Gross Carrying Amount | 1,578 | 1,674
Accumulated Amortization | (598) | (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 | 2,723 | 2,924
Accumulated Amortization | (454) | (361)
Customer Relationships [Member] |  |
Finite-lived intangible assets |  |
Gross Carrying Amount | 10,195 | 10,728
Accumulated Amortization | $ (2,690) | $ (2,279)

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- 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 + Details
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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 + Details
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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 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 + Details
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