v3.20.1

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended
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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

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