Consolidated Balance Sheets (Parenthetical) - shares	Jun. 30, 2020	Dec. 31, 2019
Common Units [Member]
Equity:
Limited Partners' Capital Account, Units Issued	83,040,781
Limited Partners' Capital Account, Units Outstanding	83,040,781	82,985,941
Class C Units [Member]
Equity:
Limited Partners' Capital Account, Units Issued	16,410,780	16,410,780
Limited Partners' Capital Account, Units Outstanding	16,410,780	16,410,780