Annual report pursuant to Section 13 and 15(d)

Fair Value Measurement - Additional Information (Detail)

v3.6.0.2
Fair Value Measurement - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Fair Value Disclosures [Abstract]    
Change in fair value of contingent liability $ (1,800) $ 230