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v3.19.3.a.u2

PARTNERS' CAPITAL (Tables) | 12 Months Ended
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Dec. 31, 2019
PARTNERS' CAPITAL |
Summary of quarterly per unit distribution paid | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Year Ended December 31, |
​ |  | 2019 |  | 2018 |  | 2017 |
First Quarter | ​ | $ | 0.5300 | ​ | $ | 0.5100 | ​ | $ | 0.4375 | ​
Second Quarter | ​ | $ | 0.5350 | ​ | $ | 0.5150 | ​ | $ | 0.4375 | ​
Third Quarter | ​ | $ | 0.5400 | ​ | $ | 0.5200 | ​ | $ | 0.5000 | ​
Fourth Quarter | ​ | $ | 0.5400 | ​ | $ | 0.5250 | ​ | $ | 0.5050 | ​

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