Build-to-Suit Lease - Additional Information (Detail)	1 Months Ended
	Dec. 31, 2015 USD ($) ft² Option
Operating Leased Assets [Line Items]
Property leased | ft²	41,400
Operating lease expiration period	5 years
Number of lease term extension options | Option	2
Costs capitalized	$ 0
Build-to-suit lease obligation	$ 0
Maximum [Member]
Operating Leased Assets [Line Items]
Lease agreement, extendable lease term	10 years