Commitments and Contingencies - Additional Information (Detail) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) $ / ft²	Mar. 31, 2015 USD ($)	Dec. 31, 2013 People	Sep. 26, 2011 USD ($)
Leases [Abstract]
Expiration of non-cancellable operating leases	Through 2022
Accrued lease commitments expense	$ 4.6
Estimated sublease income	2.4
Rent expense under operating leases	$ 0.3	$ 0.3
Incentives per square feet | $ / ft²	40.00
Incentives for improvements to space	$ 2.2
Lease agreement term	10 years
Amount received to start-up new facility				$ 1.0
Minimum number of people to be employed | People			232
Time period to meet employment commitment			3 years
New deadline to meet employment commitment	Apr. 30, 2016