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Total Capital and Net Income Per Unit Net Income (Loss) Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Class of Stock [Line Items] |  |  |  |
Limited partners’ interest in net income | $ 59,487 | $ 33,255 | $ 185,267 | $ 32,421
Weighted average number of common units | 87,120,897 | 86,951,234 | 87,081,753 | 82,010,753
Dilutive effect of unit-based compensation | 112,094 | 89,812 | 136,657 | 99,073
Weighted average number of common units and common unit equivalents (in units) | 87,232,991 | 87,041,046 | 87,218,410 | 82,109,826
Basic (usd per unit) | $ 0.68 | $ 0.38 | $ 2.13 | $ 0.40
Diluted (usd per unit) | $ 0.68 | $ 0.38 | $ 2.12 | $ 0.39
Limited Partners | Preferred Units |  |  |  |
Class of Stock [Line Items] |  |  |  |
Dividends, Preferred Stock, Cash | $ 6,400 | $ 6,400 | $ 19,300 | $ 19,300

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