Annual report pursuant to Section 13 and 15(d)

Property and Equipment - Additional Information (Detail)

v3.6.0.2
Property and Equipment - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Property Plant And Equipment [Abstract]      
Depreciation and amortization $ 997 $ 988 $ 549
Costs capitalized $ 3,900