Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Additional Information (Detail)

v3.7.0.1
Property and Equipment - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Property, Plant and Equipment [Abstract]    
Fully depreciated computer software and hardware and furniture, fixtures and equipment write-off $ 949,000 $ 1,000,000