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Related Party Transactions - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Related Party Transaction [Line Items]    
Amounts owed to related party $ 675 $ 403
LKF [Member]    
Related Party Transaction [Line Items]    
Contribution by University 500 500
Amounts owed to related party $ 500 $ 0