Partners' Deficit (Rollforward of the Number of Common Limited Partner Units Outstanding) (Details)	9 Months Ended
	Sep. 30, 2020 shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	23,160,551
Units issued under the LTIP	47,620
Units, End of period	23,208,171
Common Units - Public [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	11,574,003
Units issued under the LTIP	47,620
Units, End of period	11,621,623
Common Units - Green Plains [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
Units, Beginning of period	11,586,548
Units, End of period	11,586,548