XML 52 R41.htm IDEA: XBRL DOCUMENT v3.20.2
Organization and Basis of Presentation and Consolidation (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
USD ($)
Jun. 30, 2020
USD ($)
Sep. 30, 2020
segment
Other Ownership Interests [Line Items]      
Number of reportable segments | segment     4
Offshore pipeline transportation      
Other Ownership Interests [Line Items]      
One-time increase in operating costs caused by downtime and damage to certain assets $ 5.0    
COVID-19      
Other Ownership Interests [Line Items]      
Restructuring and severance expenses   $ 13.0  
Genesis Energy, LLC      
Other Ownership Interests [Line Items]      
Limited Partners' ownership percentage     100.00%