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Intangible Assets - Schedule of Amortizable Purchased Intangible Assets from Acquisition (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
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Finite-Lived Intangible Assets [Line Items] |  |
Gross | $ 42,520 | $ 42,520
Accumulated Amortization | (10,752) | (9,856)
Accumulated Impairment | (29,749) | (29,749)
Net | 2,019 | 2,915
Developed technologies [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 26,000 | 26,000
Accumulated Amortization | (6,120) | (5,786)
Accumulated Impairment | (19,547) | (19,547)
Net | 333 | 667
Trade name [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 12,800 | 12,800
Accumulated Amortization | (2,665) | (2,147)
Accumulated Impairment | (8,582) | (8,582)
Net | 1,553 | 2,071
Other [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross | 3,720 | 3,720
Accumulated Amortization | (1,967) | (1,923)
Accumulated Impairment | (1,620) | (1,620)
Net | $ 133 | $ 177

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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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