Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2020 |
Mar. 31, 2019 |
|
| Share-based Compensation Arrangements by Share-based Payment Award [Line Items] | ||
| Allocation of LTIP expense on consolidated statements of income | $ 155 | $ 4,914 |
| Performance Based Awards [Member] | ||
| Share-based Compensation Arrangements by Share-based Payment Award [Line Items] | ||
| Allocation of LTIP expense on consolidated statements of income | (1,947) | 3,644 |
| Time-Based Awards [Member] | ||
| Share-based Compensation Arrangements by Share-based Payment Award [Line Items] | ||
| Allocation of LTIP expense on consolidated statements of income | $ 2,102 | $ 1,270 |