CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - shares	Mar. 31, 2020	Dec. 31, 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
Series B Preferred Units
Units outstanding (units)	800,000	800,000	800,000	800,000
Common Units
Units outstanding (units)	728,053,007	728,028,576	726,785,813	726,361,924