Acquisition of Rivierawaves - Additional Information (Detail) - RivieraWaves - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jul. 04, 2014 |
Dec. 31, 2016 |
|
| Business Acquisition [Line Items] | ||
| Percentage of voting interests acquired | 100.00% | |
| Cost of acquired entity, purchase price | $ 18,378 | |
| Cost of acquired entity cash paid at closing | 14,678 | |
| Business acquisition, description of contingent consideration arrangements | The remaining amount of $3,700 payable upon the satisfaction of certain milestones (the "Contingent Consideration") | |
| Business acquisition, contingent consideration liability | 3,700 | |
| Business acquisition, acquisition-related costs | 310 | |
| Business acquisition, description of acquired entity | In addition, as part of the acquisition, the Company established an employee retention plan for the RivieraWaves employees at a cost of approximately $3,400, to be payable on a semiannual basis for a period of two years after the Closing Date. | |
| Employee retention plan cost | $ 3,400 | |
| Employee retention plan payment period | 2 years |