Quarterly report pursuant to Section 13 or 15(d)

Income Tax - Additional Information (Detail)

v3.2.0.727
Income Tax - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Income Tax Holiday [Line Items]          
Income tax (expense) benefit $ (76) $ 830 $ (53) $ 770  
TRS [Member]          
Income Tax Holiday [Line Items]          
Income tax (expense) benefit $ 100 $ 800 $ 100 $ 800  
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%    
Net deferred tax liabilities         $ 100