v2.4.0.8
Segment Disclosures (Schedule Of Business Segment Reporting Information) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Segment Reporting Information [Line Items]          
Transportation and terminals revenue $ 360,517 $ 295,326 $ 1,031,722 $ 805,059  
Product sales revenue 155,865 144,852 589,585 504,485  
Affiliate management fee revenue 5,219 3,657 15,346 10,624  
Total revenue 521,601 443,835 1,636,653 1,320,168  
Operating expenses 132,387 103,262 330,758 245,858  
Cost of product sales 91,591 120,299 398,734 396,025  
Earnings of non-controlled entities (1,645) (2,375) (4,066) (5,162)  
Operating margin 299,268 222,649 911,227 683,447  
Depreciation and amortization expense 38,054 35,270 122,462 105,788  
G&A expenses 35,377 32,755 109,621 96,073  
Operating profit 225,837 154,624 679,144 481,586  
Assets 5,311,396   5,311,396   4,820,812
Operating Segments [Member]
          
Segment Reporting Information [Line Items]          
Assets 5,220,809   5,220,809    
Operating Segments [Member] | Refined Products [Member]
          
Segment Reporting Information [Line Items]          
Transportation and terminals revenue 237,972 205,859 680,697 573,615  
Product sales revenue 155,134 143,549 585,178 499,285  
Affiliate management fee revenue 0 0 0 0  
Total revenue 393,106 349,408 1,265,875 1,072,900  
Operating expenses 101,206 82,174 249,665 194,911  
Cost of product sales 91,407 120,429 397,980 393,187  
Earnings of non-controlled entities 0 0 0 0  
Operating margin 200,493 146,805 618,230 484,802  
Depreciation and amortization expense 23,050 21,851 78,305 64,428  
G&A expenses 22,600 22,741 70,993 67,235  
Operating profit 154,843 102,213 468,932 353,139  
Assets 2,849,397   2,849,397    
Operating Segments [Member] | Crude Oil Pipeline and Terminals [Member]
          
Segment Reporting Information [Line Items]          
Transportation and terminals revenue 78,839 49,519 226,298 113,905  
Product sales revenue 0 0 0 0  
Affiliate management fee revenue 4,902 3,369 14,399 9,767  
Total revenue 83,741 52,888 240,697 123,672  
Operating expenses 14,375 4,034 35,300 13,168  
Cost of product sales 0 0 0 0  
Earnings of non-controlled entities (959) (1,770) (1,667) (3,255)  
Operating margin 70,325 50,624 207,064 113,759  
Depreciation and amortization expense 6,918 5,538 20,106 18,111  
G&A expenses 7,635 5,100 21,326 14,142  
Operating profit 55,772 39,986 165,632 81,506  
Assets 1,732,464   1,732,464    
Operating Segments [Member] | Marine Storage [Member]
          
Segment Reporting Information [Line Items]          
Transportation and terminals revenue 43,706 39,948 124,727 117,539  
Product sales revenue 731 1,303 4,407 5,200  
Affiliate management fee revenue 317 288 947 857  
Total revenue 44,754 41,539 130,081 123,596  
Operating expenses 17,691 17,813 48,321 40,060  
Cost of product sales 184 (130) 754 2,838  
Earnings of non-controlled entities (686) (605) (2,399) (1,907)  
Operating margin 27,565 24,461 83,405 82,605  
Depreciation and amortization expense 7,201 7,122 21,523 20,968  
G&A expenses 5,142 4,914 17,302 14,696  
Operating profit 15,222 12,425 44,580 46,941  
Assets 638,948   638,948    
Intersegment Eliminations [Member]
          
Segment Reporting Information [Line Items]          
Transportation and terminals revenue 0 0 0 0  
Product sales revenue 0 0 0 0  
Affiliate management fee revenue 0 0 0 0  
Total revenue 0 0 0 0  
Operating expenses (885) (759) (2,528) (2,281)  
Cost of product sales 0 0 0 0  
Earnings of non-controlled entities 0 0 0 0  
Operating margin 885 759 2,528 2,281  
Depreciation and amortization expense 885 759 2,528 2,281  
G&A expenses 0 0 0 0  
Operating profit 0 0 0 0  
Corporate, Non-Segment [Member]
          
Segment Reporting Information [Line Items]          
Assets $ 90,587   $ 90,587