Incentive Plan - Summary of Non-Vested Performance-based Grants (Details) - Performance shares |
12 Months Ended |
|---|---|
|
Dec. 31, 2019
$ / shares
shares
| |
| Number of Preferred Stock Units | |
| Non-vested at beginning of period (in shares) | shares | 682,985 |
| Granted during period (in shares) | shares | 0 |
| Vested during period (in shares) | shares | (218,541) |
| Forfeited during period (in shares) | shares | (152,206) |
| Non-vested at end of period (in shares) | shares | 312,238 |
| Weighted Average Grant Date, Fair Value Per Share | |
| Non-vested at beginning of period (in dollars per share) | $ / shares | $ 27.27 |
| Granted during period (in dollars per share) | $ / shares | 0 |
| Vested during period (in dollars per share) | $ / shares | 36.33 |
| Forfeited during period (in dollars per share) | $ / shares | 28.13 |
| Non-vested at end of period (in dollars per share) | $ / shares | $ 20.52 |