Goodwill and Intangible Assets - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014 Segment	Mar. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Number of reportable segments goodwill is allocated	1
Weighted-average amortization period intangible assets	10 years 9 months 18 days
Amortization of intangible assets	$ 462	$ 256
Customer Lists [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period intangible assets	11 years 3 months 4 days
Patents and Technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period intangible assets	9 years 8 months 16 days
Trade Names and Trademarks [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period intangible assets	9 years 3 months 11 days
Acquired goodwill [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Number of reportable segments goodwill is allocated	1