Stock-Based Compensation - Compensation Expense (Details) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2020 |
Sep. 30, 2019 |
Sep. 30, 2020 |
Sep. 30, 2019 |
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
$ 5,515
|
$ 8,110
|
$ 16,651
|
$ 21,351
|
| Restricted stock awards |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
3,864
|
4,569
|
11,605
|
11,159
|
| Stock option awards |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
399
|
2,557
|
1,674
|
7,766
|
| Performance stock units |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
653
|
918
|
2,659
|
2,360
|
| Employee Stock [Member] |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
112
|
66
|
226
|
66
|
| Equity [Member] |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
5,028
|
8,110
|
16,164
|
21,351
|
| Cash-settled Performance Stock |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
197
|
0
|
197
|
0
|
| Cash-settled Restricted Stock |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
290
|
0
|
290
|
0
|
| Liability Award [Member] |
|
|
|
|
| Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |
|
|
|
|
| Total equity based compensation expense |
$ 487
|
$ 0
|
$ 487
|
$ 0
|