Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Product	Dec. 31, 2012	Dec. 31, 2011
Significant Accounting Policies [Line Items]
Percentage of consolidated revenues held by customer		10.00%
Deferred revenue	$ 1,009,000	$ 1,009,000	$ 1,361,000
Inventory at consigned location	18,400,000	18,400,000	22,000,000
Number of products no longer actively market		2
Impairment charges		1,300,000
Percentage of weighted average cost of capital discount rate		12.00%
Fair Value Inputs, Long-term Revenue Growth Rate		4.00%
Foreign currency gains		(1,700,000)	(900,000)	500,000
Contingent consideration	3,800,000
Product shipment costs		3,100,000	2,900,000	3,600,000
Stock-based compensation expense		$ 1,500,000	$ 1,300,000	$ 0
Minimum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		3 years
Fair Value Inputs, Long-term Revenue Growth Rate		4.00%
Intangible assets, amortization period		1 year
Maximum [Member]
Significant Accounting Policies [Line Items]
Estimated useful lives of property and equipment		7 years
Fair Value Inputs, Long-term Revenue Growth Rate		12.00%
Intangible assets, amortization period		15 years
Sales [Member] | Customer Concentration Risk [Member]
Significant Accounting Policies [Line Items]
Concentration risk, number of customers		0	0	0