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Significant Components of Company's Deferred Tax Assets (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Schedule of Deferred Income Tax Assets and Liabilities [Line Items] |  |  |  |
Net deferred tax assets | $ 398 us-gaap_DeferredTaxAssetsLiabilitiesNet | [1] | $ 4,339 us-gaap_DeferredTaxAssetsLiabilitiesNet | [1]
Domestic jurisdictions |  |  |  |
Schedule of Deferred Income Tax Assets and Liabilities [Line Items] |  |  |  |
Net deferred tax assets | 0 us-gaap_DeferredTaxAssetsLiabilitiesNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember |  | 2,999 us-gaap_DeferredTaxAssetsLiabilitiesNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember |
Foreign jurisdictions |  |  |  |
Schedule of Deferred Income Tax Assets and Liabilities [Line Items] |  |  |  |
Net deferred tax assets | $ 398 us-gaap_DeferredTaxAssetsLiabilitiesNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember |  | $ 1,340 us-gaap_DeferredTaxAssetsLiabilitiesNet / us-gaap_IncomeTaxAuthorityAxis = us-gaap_ForeignCountryMember |
[1] | Net deferred tax for the year ended December 31, 2013 from domestic and foreign jurisdictions was $2,999 and $1,340, respectively. Net deferred tax for the year ended December 31, 2014 from domestic and foreign jurisdictions was $0 and $398, respectively.

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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