Acquisitions, Goodwill and Other Intangible Assets - Additional Information (Detail)	6 Months Ended		1 Months Ended			6 Months Ended			1 Months Ended	3 Months Ended	6 Months Ended			1 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2012 USD ($)	Dec. 31, 2011 Novozymes Biopharma Sweden Ab USD ($)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab USD ($)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab EUR (€)	Jun. 30, 2012 Novozymes Biopharma Sweden Ab USD ($)	Jun. 30, 2013 Novozymes Biopharma Sweden Ab USD ($)	Dec. 31, 2012 Novozymes Biopharma Sweden Ab USD ($)	Mar. 31, 2013 Novozymes Biopharma Sweden Ab Earn Out Payment EUR (€)	Jun. 30, 2013 Novozymes Biopharma Sweden Ab Earn Out Payment EUR (€)	Jun. 30, 2013 Novozymes Biopharma Sweden Ab Earn Out Payment EUR (€)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Earn Out Payment USD ($)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Earn Out Payment EUR (€)	Dec. 31, 2011 Novozymes Biopharma Sweden Ab Milestone Payments Installment	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Milestone Payments USD ($)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Milestone Payments EUR (€)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Technology Transfer Payments USD ($)	Dec. 20, 2011 Novozymes Biopharma Sweden Ab Technology Transfer Payments EUR (€)
Business Acquisition [Line Items]
Business acquisition, consideration transferred			$ 28,495,000	$ 26,400,000	€ 20,310,000
Business acquisition, maximum contingent payment				5,200,000	4,000,000							1,300,000	1,000,000		1,300,000	1,000,000	1,300,000	1,000,000
Business acquisition, contingent Payment made									1,000,000	1,000,000	1,000,000
Business acquisition, number of milestone payments														2
Business acquisition, probability-weighted fair value of contingent consideration							1,028,000	2,353,000
Business acquisition, fair value of the net assets acquired			28,922,000
Gain on bargain purchase		314,244	427,000			314,000
Amortization expense	469,000
Expected amortization expense in 2013 (excluding the six months ended June 30, 2013)	1,000,000
Expected amortization expense in 2014	1,000,000
Expected amortization expense in 2015	1,000,000
Expected amortization expense in 2016	1,000,000
Expected amortization expense in 2017	$ 1,000,000