v3.20.1

CONSOLIDATED BALANCE SHEETS Non-Printing - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Allowance for doubtful accounts | $ 61 | $ 72
Series D preferred units outstanding | 23,246,650 | 23,246,650
Limited partners common units outstanding (in units) | 109,194,072 | 108,527,806
Series A Preferred Limited Partner [Member] |  |
Preferred units outstanding | 9,060,000 | 9,060,000
Series B Preferred Limited Partner [Member] |  |
Preferred units outstanding | 15,400,000 | 15,400,000
Series C Preferred Limited Partner [Member] |  |
Preferred units outstanding | 6,900,000 | 6,900,000

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