Commitments and Contingencies - Additional Information (Detail) - USD ($)		3 Months Ended	12 Months Ended
	Feb. 17, 2016	Mar. 31, 2016	Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Cost of purchasing equipment or components		$ 5,200,000
Settlement paid	$ 900,000
Settlement expenses			$ 1,100,000