v3.19.2

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |  |  |
Allocation of LTIP expense on consolidated statements of income | $ 10,890 | $ 10,047 | $ 15,804 | $ 16,679
G&A Expense [Member] |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |  |  |
Allocation of LTIP expense on consolidated statements of income | 10,802 | 9,968 | 15,673 | 16,545
Operating Expenses [Member] |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |  |  |
Allocation of LTIP expense on consolidated statements of income | 88 | 79 | 131 | 134
Performance Based Awards [Member] |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |  |  |
Allocation of LTIP expense on consolidated statements of income | 9,317 | 9,165 | 12,961 | 15,089
Time-Based Awards [Member] |  |  |  |
Share-based Compensation Arrangements by Share-based Payment Award [Line Items] |  |  |  |
Allocation of LTIP expense on consolidated statements of income | $ 1,573 | $ 882 | $ 2,843 | $ 1,590

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