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v3.19.3.a.u2

Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Net revenues | $ 138,611 | $ 137,556 | $ 155,342 | $ 152,483 | $ 159,298 | $ 164,110 | $ 166,280 | $ 167,921 | $ 583,992 | $ 657,609 | $ 538,075
Operating income | 29,716 | 34,729 | 32,256 | 29,111 | 31,147 | 32,624 | 34,710 | 27,277 | 125,812 | 125,757 | 88,177
Net income | 21,638 | 30,530 | 24,885 | 19,696 | 21,280 | 23,326 | 25,582 | 19,995 | 96,749 | 90,182 | 69,409
Limited partners' interest in net income | $ 12,802 | $ 21,635 | $ 16,806 | $ 12,426 | $ 14,215 | $ 16,690 | $ 19,370 | $ 14,365 | $ 63,669 | $ 64,639 | $ 50,980
Net income per limited partner unit: |  |  |  |  |  |  |  |  |  |  |
Common (basic) (in usd per unit) |  |  |  |  |  |  |  |  | $ 2.61 | $ 2.65 | $ 2.09
Common units - (diluted) (in usd per unit) |  |  |  |  |  |  |  |  | $ 2.61 | $ 2.65 | $ 2.09
Common Units |  |  |  |  |  |  |  |  |  |  |
Net income per limited partner unit: |  |  |  |  |  |  |  |  |  |  |
Common (basic) (in usd per unit) | $ 0.52 | $ 0.89 | $ 0.69 | $ 0.51 | $ 0.58 | $ 0.68 | $ 0.79 | $ 0.59 |  |  |
Common units - (diluted) (in usd per unit) | $ 0.52 | $ 0.89 | $ 0.69 | $ 0.51 | $ 0.58 | $ 0.68 | $ 0.79 | $ 0.59 |  |  |

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