XML 72 R57.htm IDEA: XBRL DOCUMENT v3.3.1.900
Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, net of accumulated amortization $ 43,089 $ 1,493  
Accumulated amortization (17,380) (14,050)  
Amortization expense (2,126) (562) $ (562)
Acquired software licenses and other intangibles      
Finite-Lived Intangible Assets [Line Items]      
Intangible assets, net of accumulated amortization 1,100 400  
Accumulated amortization (2,700) (2,400)  
Amortization expense $ (300) $ (200) $ (100)
Weighted-Average Life Remaining (in years) 4 years