Equity-Based Compensation - Summary of Restricted Share Activity (Details) - Restricted Share - $ / shares
|
12 Months Ended |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
| Total Shares |
|
|
|
| Outstanding, beginning of the period (in shares) |
3,444,522
|
2,887,150
|
3,234,664.000
|
| Granted (in shares) |
384,629
|
569,114
|
583,404
|
| Forfeited/Terminated (in shares) |
(53,003)
|
0
|
(127,582)
|
| Purchased (in shares) |
0
|
(11,742)
|
(803,336)
|
| Outstanding, end of the period (in shares) |
3,776,148
|
3,444,522
|
2,887,150
|
| Vested Shares |
|
|
|
| Outstanding, beginning of the period (in shares) |
3,313,906
|
3,276,868
|
1,645,085
|
| Purchased (in shares) |
0
|
(11,742)
|
(803,336)
|
| Vested (in shares) |
(37,038)
|
(1,643,525)
|
(659,641)
|
| Outstanding, end of the period (in shares) |
3,276,868
|
1,645,085
|
1,788,780.00
|
| Unvested Shares |
|
|
|
| Outstanding, beginning of the period (in shares) |
167,654
|
1,242,065
|
1,445,884.000
|
| Granted (in shares) |
384,629
|
569,114
|
583,404
|
| Forfeited/Terminated (in shares) |
(53,003)
|
0
|
(127,582)
|
| Vested (in shares) |
(37,038)
|
(1,643,525)
|
(659,641)
|
| Outstanding, end of the period (in shares) |
462,242
|
167,654
|
1,242,065
|
| Weighted-Average Grant Fair Value |
|
|
|
| Outstanding, beginning of the period (in USD per share) |
$ 2.53
|
$ 1.96
|
$ 0.81
|
| Granted (in USD per share) |
15.09
|
6.31
|
6.44
|
| Forfeited/Terminated (in USD per share) |
11.85
|
0.00
|
1.27
|
| Purchased (in USD per share) |
0.00
|
6.31
|
3.64
|
| Vested (in USD per share) |
6.31
|
3.79
|
1.43
|
| Outstanding, end of the period (in USD per share) |
$ 3.72
|
$ 2.53
|
$ 1.96
|