v3.10.0.1
Net Income Per Limited Partner Unit (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Net income per limited partner unit                      
Net income                 $ 585,944 $ 307,315 $ 236,703
Net income attributable to incentive distribution rights $ (43,492) $ (37,816) $ (33,145) $ (28,453) $ (23,772) $ (19,067) $ (15,328) $ (11,553) (142,906) (69,720) (16,944)
Limited partners' interest in net income $ 205,117 $ 81,948 $ 76,321 $ 79,652 $ 40,383 $ 61,826 $ 71,847 $ 63,539 $ 443,038 $ 237,595 $ 219,759
Net income per limited partner unit - basic $ 1.10 $ 0.44 $ 0.41 $ 0.43         $ 2.37 $ 1.28 $ 1.24
Net income per limited partner unit - diluted $ 1.09 $ 0.44 $ 0.41 $ 0.43         $ 2.36 $ 1.28 $ 1.24
Weighted average limited partner units outstanding - basic                 187,048 185,630 176,647
Weighted average units outstanding - diluted                 187,398 186,083 176,801
Weighted average units outstanding:                      
Basic                 187,048 185,630 176,647
Diluted                 187,398 186,083 176,801
Restricted and phantom unit award                      
Net income per limited partner unit                      
Weighted average units outstanding - diluted                 349,339    
Weighted average units outstanding:                      
Antidilutive securities excluded from computation of earnings per share                 0    
Common units                      
Net income per limited partner unit                      
Weighted average units outstanding - diluted                 187,397,524