Geographic Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2016 |
Sep. 30, 2016 |
Jun. 30, 2016 |
Mar. 31, 2016 |
Dec. 31, 2015 |
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | $ 49,299 | $ 53,889 | $ 51,984 | $ 61,902 | $ 52,912 | $ 44,921 | $ 45,087 | $ 47,435 | $ 217,074 | $ 190,355 | $ 159,289 |
| United States | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | 193,054 | 164,952 | 136,478 | ||||||||
| Americas, excluding U.S. | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | 2,562 | 4,552 | 4,883 | ||||||||
| Europe, Middle East, India, Africa | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | 14,256 | 15,437 | 13,098 | ||||||||
| Other | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenues | $ 7,202 | $ 5,414 | $ 4,830 | ||||||||