Accrued Expenses and Other Liabilities - Schedule of Accrued Expenses (Detail) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Payables and Accruals [Abstract]
Compensation and benefits	$ 9,118	$ 10,525
Freight, distribution and operations	3,282	2,962
Accrued rebates, discounts and chargebacks	2,373	2,085
Accrued professional fees	1,272	1,493
Marketing expense	725	490
Research and development services	298	360
Other	596	587
Accrued expenses	$ 17,664	$ 18,502