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Description of the Business (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Limited Partners    
Schedule of Capitalization, Equity [Line Items]    
Limited partners interest units outstanding 77,560,355 77,177,159
Limited partners', ownership percentage 98.00%  
General Partner    
Schedule of Capitalization, Equity [Line Items]    
General partner units outstanding 1,582,864  
General partner, ownership percentage 2.00%