Goodwill and Intangible Assets - Summary of Company's Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Finite Lived Intangible Assets [Line Items]
Cost	$ 12,227	$ 12,218
Accumulated Amortization	(4,381)	(3,234)
Net Carrying Amount	7,846	8,984
Technology
Finite Lived Intangible Assets [Line Items]
Cost	5,770	5,770
Accumulated Amortization	(2,992)	(2,159)
Net Carrying Amount	2,778	3,611
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Cost	5,707	5,698
Accumulated Amortization	(1,017)	(816)
Net Carrying Amount	4,690	4,882
Non-Competition Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Cost	380	380
Accumulated Amortization	(169)	(106)
Net Carrying Amount	211	274
Tradenames - Finite Life [Member]
Finite Lived Intangible Assets [Line Items]
Cost	370	370
Accumulated Amortization	(203)	(153)
Net Carrying Amount	$ 167	$ 217