Property and Equipment, Net - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Property Plant And Equipment [Abstract]
Depreciation expense	$ 9,100	$ 7,900	$ 6,400
Expected rental income, during 2016	1,700
Expected rental income, during 2017	1,600
Expected rental income, during 2018	1,600
Expected rental income, during 2019	1,500
Expected rental income, during 2020	1,300
Expected rental income, thereafter	6,600
Rental income from third party tenants	$ 913	$ 945	$ 704
Lease expiration year, earliest	2016
Lease expiration year, latest	2025