Stockholders' Equity - Class A Common Stock (Detail) - Class A Common Stock - shares |
1 Months Ended | ||||
|---|---|---|---|---|---|
Nov. 30, 2015 |
Aug. 31, 2015 |
May. 31, 2015 |
Apr. 30, 2015 |
Mar. 31, 2015 |
|
| Class Of Stock [Line Items] | |||||
| Issuance of Class A common Stock upon conversion of Class B units to Class A common stock | 77,116 | 65,377 | 50,000 | 11,246 | 18,000 |
| Common stock conversion date | Nov. 30, 2015 | Aug. 31, 2015 | May 31, 2015 | Apr. 30, 2015 | Mar. 31, 2015 |