Commitments and Contingencies (Commercial Development Agreement) - Additional Information (Detail) - Master Collaboration Agreement [Member] - Qiagen [Member] $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2015
USD ($)
| |
| Other Commitments [Line Items] | |
| Contingent milestone payment | $ 1,000 |
| Agreement termination period by the company | 180 days |
| Agreement termination period by both parties | 60 days |