Accrued Expenses and Other Current Liabilities - Severance Costs (Details) - Reductions in force - USD ($) $ in Thousands |
9 Months Ended | |
|---|---|---|
Sep. 30, 2016 |
Dec. 31, 2015 |
|
| Restructuring Cost and Reserve [Line Items] | ||
| Severance costs | $ 1,700 | |
| Accrued expense | $ 485 | |
| Sales and Marketing | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance costs | 700 | |
| Product Development | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance costs | 600 | |
| Service Costs | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance costs | 300 | |
| General and Administrative | ||
| Restructuring Cost and Reserve [Line Items] | ||
| Severance costs | $ 100 |