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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 30, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Distribution Made To Limited Partner Cash Distributions Paid |  | $ 16,391 | $ 48,422 | $ 66,857
Subsequent Event | Distribution from November 12, 2019 to February 11, 2020 | Series A Preferred |  |  |  |
Distribution Made To Limited Partner And General Partner Declaration Date | Jan. 20, 2020 |  |  |
Distributions paid, Per unit | $ 0.5625 |  |  |
Distribution Made To Limited And General Partner Distribution Date | Feb. 12, 2020 |  |  |
Distribution Made To Limited And General Partner Date Record | Feb. 05, 2020 |  |  |
Subsequent Event | Distribution from November 22, 2019 to February 21, 2020 | Series B Preferred |  |  |  |
Distribution Made To Limited Partner And General Partner Declaration Date | Jan. 30, 2020 |  |  |
Distributions paid, Per unit | $ 0.546875 |  |  |
Distribution Made To Limited And General Partner Distribution Date | Feb. 24, 2020 |  |  |
Distribution Made To Limited And General Partner Date Record | Feb. 17, 2020 |  |  |

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