Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Components of Consolidated Provision for Income Taxes (Detail)

v2.4.1.9
Income Taxes - Summary of Components of Consolidated Provision for Income Taxes (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
U.S Federal income tax expense    
U.S Federal income tax expense Current $ (26)us-gaap_CurrentFederalTaxExpenseBenefit  
U.S Federal income tax expense Deferred (2,273)us-gaap_DeferredFederalIncomeTaxExpenseBenefit (1,107)us-gaap_DeferredFederalIncomeTaxExpenseBenefit
Total U.S. Federal income tax expense (2,299)us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations (1,107)us-gaap_FederalIncomeTaxExpenseBenefitContinuingOperations
State and local income tax expense    
State and local income tax expense Current (68)us-gaap_CurrentStateAndLocalTaxExpenseBenefit (3)us-gaap_CurrentStateAndLocalTaxExpenseBenefit
State and local income tax expense Deferred (315)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit (73)us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Total state and local income tax expense (383)us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations (76)us-gaap_StateAndLocalIncomeTaxExpenseBenefitContinuingOperations
Foreign income tax expense (benefit)    
Foreign income tax expense (benefit) Current (171)us-gaap_CurrentForeignTaxExpenseBenefit 152us-gaap_CurrentForeignTaxExpenseBenefit
Total income tax expense $ (2,853)us-gaap_IncomeTaxExpenseBenefit $ (1,031)us-gaap_IncomeTaxExpenseBenefit