Commitments and Contingencies - Future Minimum Payment Related Lease (Detail) $ in Thousands	Dec. 31, 2015 USD ($)
Lease Payments
2016	$ 4,106
2017	4,188
2018	4,259
2019	4,350
2020	4,450
Thereafter	33,263
Total	54,616
Sublease Income
2016	682
2017	580
2018	0
2019	0
2020	0
Thereafter	0
Total sublease income receivable	1,262
Net Lease Payments
2016	3,424
2017	3,608
2018	4,259
2019	4,350
2020	4,450
Thereafter	33,263
Net operating lease payments	$ 53,354