Commitments and Contingencies - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2013 Number_Of_People	Sep. 19, 2016 USD ($)	Jun. 27, 2016 USD ($)	Sep. 26, 2011 USD ($)
Leases [Abstract]
Amount received to start-up new facility			$ 1.0		$ 1.0
Minimum number of people to be employed | Number_Of_People		232
Time period to meet employment commitment		3 years
New deadline to meet employment commitment	Apr. 30, 2016
Funds to be repaid under the agreement			$ 0.3
Grant earned under agreement				$ 0.7