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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Series A Preferred Units                
Units outstanding (units) 71,090,468 71,090,468 71,090,468 71,090,468 71,090,468 71,090,468 71,090,468 71,090,468
Series B Preferred Units                
Units outstanding (units) 800,000 800,000 800,000 800,000 800,000 800,000 800,000 800,000
Common Units                
Units outstanding (units) 728,476,591 728,100,398 728,053,007 728,028,576 728,028,576 727,424,619 726,785,813 726,361,924