Quarterly report pursuant to Section 13 or 15(d)

Income Tax - Additional Information (Detail)

v3.5.0.2
Income Tax - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Income Tax Holiday [Line Items]        
Income tax (expense) $ (41) $ (24) $ (123) $ (77)
Effective income tax rate reconciliation, at federal statutory income tax rate, Percent     35.00%  
Effective income tax rate reconciliation, State and local income taxes, Percent     5.00%  
Maximum [Member]        
Income Tax Holiday [Line Items]        
Income tax (expense) $ (100) $ (100) $ (100) $ (100)