Property and Equipment - Additional Information (Details) - USD ($) |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
Dec. 31, 2015 |
|
| Property Plant And Equipment [Abstract] | |||||
| Accumulated amortization for capitalized software development costs | $ 1,873,000 | $ 1,873,000 | $ 987,000 | ||
| Amortization expense for capitalized software development costs | $ 260,000 | $ 178,000 | $ 838,000 | $ 443,000 | |