Share-based Compensation - Summary of PRSU Activity (Details) - Performance-based RSUs |
12 Months Ended |
|---|---|
|
Dec. 31, 2019
$ / shares
shares
| |
| Number of Shares | |
| Unvested at the beginning of the period (in shares) | shares | 626,168 |
| Forfeited (in shares) | shares | (81,000) |
| Vested (in shares) | shares | (1,614) |
| Unvested at the end of the period (in shares) | shares | 543,554 |
| Weighted Average Grant Date Fair Value | |
| Unvested at the beginning of the period (in dollars per share) | $ / shares | $ 54.75 |
| Forfeited (in dollars per share) | $ / shares | 54.77 |
| Vested (in dollars per share) | $ / shares | 48.48 |
| Unvested at the end of the period (in dollars per share) | $ / shares | $ 54.75 |