Subsequent Event - Subsequent Event (Detail) - Common Stock [Member] - shares
|
Jan. 01, 2016 |
Jan. 01, 2015 |
| 2014 Stock Incentive Plan [Member] |
|
|
| Subsequent Event [Line Items] |
|
|
| Increased number of shares of common stock reserved for issuance |
|
1,659,218
|
| Additional number of shares of common stock , percentage |
|
4.00%
|
| 2014 Employee Stock Purchase Plan [Member] |
|
|
| Subsequent Event [Line Items] |
|
|
| Increased number of shares of common stock reserved for issuance |
|
207,402
|
| Additional number of shares of common stock , percentage |
|
0.50%
|
| Subsequent Event [Member] | 2014 Stock Incentive Plan [Member] |
|
|
| Subsequent Event [Line Items] |
|
|
| Additional number of shares authorized for issuance |
990,012
|
|
| Subsequent Event [Member] | 2014 Employee Stock Purchase Plan [Member] |
|
|
| Subsequent Event [Line Items] |
|
|
| Additional number of shares authorized for issuance |
123,752
|
|