Goodwill and Intangible Assets - Summary of Company's Intangible Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite Lived Intangible Assets [Line Items]
Cost	$ 12,188	$ 12,202
Accumulated Amortization	(7,757)	(5,494)
Net Carrying Amount	4,431	6,707
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Cost	5,770	5,770
Accumulated Amortization	(5,492)	(3,826)
Net Carrying Amount	278	1,944
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Cost	5,668	5,682
Accumulated Amortization	(1,553)	(1,183)
Net Carrying Amount	4,115	4,499
Non-Competition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Cost	380	380
Accumulated Amortization	(359)	(232)
Net Carrying Amount	21	148
Tradenames - Finite Life [Member]
Finite Lived Intangible Assets [Line Items]
Cost	370	370
Accumulated Amortization	(353)	(253)
Net Carrying Amount	$ 17	$ 117