XML 74 R60.htm IDEA: XBRL DOCUMENT v3.3.1.900
Income Taxes - Components of Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Income Tax Disclosure [Abstract]      
Current $ 0 $ (137) $ (1,717)
Deferred:      
Federal (2,728) (3,277) (484)
Change in valuation allowance 1,966 8,140  
Total deferred (762) 4,863 (484)
Total income tax (benefit) expense $ (762) $ 4,726 $ (2,201)