Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015 Customer	Mar. 31, 2014 Customer
Schedule Of Significant Accounting Policies [Line Items]
Unrealized foreign currency transaction gains recognized in earnings	$ 1,100,000	$ (41,000)
Inventory adjustments	217,000.0	1,000,000
Product revenue, net	23,901,000	7,992,000
Aggregate gross selling price of shipments	18,300,000
Payment received on shipment	17,100,000
Number Of customers accounted for accounts receivable	1	1
Outside the United States
Schedule Of Significant Accounting Policies [Line Items]
Long lived assets	1,400,000	1,300,000
Biologics, Inc.
Schedule Of Significant Accounting Policies [Line Items]
Product revenue, net	$ 1,200,000
Net product revenue
Schedule Of Significant Accounting Policies [Line Items]
Number of customers accounted for net product sales	1	1
Net product revenue | Customer One Product Sales
Schedule Of Significant Accounting Policies [Line Items]
Customers concentration risk, percentage	77.00%	58.00%
Net product revenue | Outside the United States
Schedule Of Significant Accounting Policies [Line Items]
Customers concentration risk, percentage	22.00%	42.00%
Net product revenue | Outside the United States | Germany
Schedule Of Significant Accounting Policies [Line Items]
Customers concentration risk, percentage	10.00%	31.00%
Accounts receivable | Customer One Product Sales
Schedule Of Significant Accounting Policies [Line Items]
Customers concentration risk, percentage	73.00%	67.00%
Maximum
Schedule Of Significant Accounting Policies [Line Items]
Capitalized costs, amortization period maximum	17 years