Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Accounting Policies [Abstract]
Cost of goods sold	$ 42,773,000	$ 39,054,000
Capitalized inventories	$ 0		$ 0