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Revenue from Contracts with Customers - Revenue From Contracts With Customers Table (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Disaggregation of Revenue [Line Items]    
Revenue from customers $ 714,491 $ 672,153
Revenue from other than customers, other 347 397
Total revenues and other 774,313 671,883
Service Revenues - Fee Based [Member]    
Disaggregation of Revenue [Line Items]    
Revenue from customers 641,921 579,974
Service Revenues - Product Based [Member]    
Disaggregation of Revenue [Line Items]    
Revenue from customers 15,921 19,379
Product Sales [Member]    
Disaggregation of Revenue [Line Items]    
Revenue from customers 56,649 72,800
Leases Revenue [Member]    
Disaggregation of Revenue [Line Items]    
Revenue from other than customers 59,475 0
Commodity-Price Swap Agreement [Member]    
Disaggregation of Revenue [Line Items]    
Revenue from other than customers $ 0 $ (667)