v3.10.0.1
Property, Plant and Equipment and Other Intangibles (Property, Plant And Equipment) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Property, Plant and Equipment [Line Items]      
Long-term Debt, Weighted Average Interest Rate, over Time 4.80% 4.80% 4.90%
Property, Plant and Equipment, Gross $ 7,628,592 $ 7,235,468  
Construction in Progress [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 395,184 389,414  
Land [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 303,485 303,797  
Building and Building Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 119,720 114,899  
Storage Tanks [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 2,059,244 1,897,046  
Pipelines [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 2,614,855 2,581,950  
Processing Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 1,875,029 1,703,478  
Property, Plant and Equipment, Other Types [Member]      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 261,075 $ 244,884  
Minimum [Member] | Building and Building Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 10 years    
Minimum [Member] | Storage Tanks [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 10 years    
Minimum [Member] | Pipelines [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 10 years    
Minimum [Member] | Processing Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 3 years    
Minimum [Member] | Property, Plant and Equipment, Other Types [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 3 years    
Maximum [Member] | Building and Building Improvements [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 53 years    
Maximum [Member] | Storage Tanks [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 40 years    
Maximum [Member] | Pipelines [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 59 years    
Maximum [Member] | Processing Equipment [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 56 years    
Maximum [Member] | Property, Plant and Equipment, Other Types [Member]      
Property, Plant and Equipment [Line Items]      
Estimated depreciable life, years 53 years