v3.10.0.1
SEGMENT INFORMATION Table 2 - Assets by Reportable Segment (Details) - USD ($)
$ in Thousands
Sep. 30, 2018
Dec. 31, 2017
Segment Information    
Total assets $ 6,720,958 $ 6,535,233
Other Partnership Assets    
Segment Information    
Total assets 194,162 188,507
Operating Segments [Member]    
Segment Information    
Total assets 6,526,796 6,346,726
Operating Segments [Member] | Pipeline Segment    
Segment Information    
Total assets 3,606,413 3,492,417
Operating Segments [Member] | Storage Segment    
Segment Information    
Total assets 2,787,886 2,735,563
Operating Segments [Member] | Fuels Marketing Segment    
Segment Information    
Total assets $ 132,497 $ 118,746