v3.19.3
Leases (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Leases [Abstract]          
Operating Leases, Rent Expense, Net   $ 11,800   $ 30,300  
2022 $ 23,855   $ 23,855    
Operating Lease, Variable Lease Income 15,400   43,300    
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Gross 8,248,181   8,248,181   $ 7,628,592
Other Energy Equipment [Member] | Property Subject to Operating Lease [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Gross 224,100   224,100    
Containers [Member] | Property Subject to Operating Lease [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Gross 72,900   72,900    
Pipelines [Member] | Property Subject to Operating Lease [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Gross 49,200   49,200    
Property, Plant and Equipment, Other Types [Member] | Property Subject to Operating Lease [Member]          
Property, Plant and Equipment [Line Items]          
Property, Plant and Equipment, Gross $ 29,900   $ 29,900