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STOCKHOLDERS' EQUITY - Summary of Accumulated Other Comprehensive (Loss) Income, Net of Tax (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     $ (21,597)  
Other comprehensive loss, net of tax $ (10) $ (44) (50) $ (75)
Ending balance (13,907)   (13,907)  
Marketable Securities        
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]        
Beginning balance     7  
Other comprehensive loss before reclassifications     (50)  
Amounts reclassified from accumulated other comprehensive (loss) income     0  
Other comprehensive loss, net of tax     (50)  
Ending balance $ (43)   $ (43)