Consolidated Statements of Partners' Deficit - USD ($) $ in Thousands	3 Months Ended				12 Months Ended
	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Balance, Beginning period		$ (72,454)		$ (62,846)	$ (72,454)	$ (62,846)	$ (64,166)
Quarterly cash distributions to unitholders					(45,098)	(61,805)	(57,771)
Net income	$ 10,390	10,248	$ 14,136	13,372	41,479	55,681	58,867
Unit-based compensation, including general partner net contributions					326	283	224
Disposition of Bluffton, Lakota, and Riga assets						117,133
Retirement of units						(120,900)
Balance, Ending period	(75,747)		(72,454)		(75,747)	(72,454)	(62,846)
General Partner [Member]
Balance, Beginning period		(1,171)		(712)	(1,171)	(712)	(739)
Quarterly cash distributions to unitholders					(1,115)	(1,504)	(1,155)
Net income					830	1,114	1,177
Unit-based compensation, including general partner net contributions					7	6	5
Disposition of Bluffton, Lakota, and Riga assets						2,343
Retirement of units						(2,418)
Balance, Ending period	(1,449)		(1,171)		(1,449)	(1,171)	(712)
Common Units - Public [Member] | Limited Partners [Member]
Balance, Beginning period		115,352		115,747	115,352	115,747	115,139
Quarterly cash distributions to unitholders					(21,968)	(21,872)	(20,519)
Net income					20,303	21,200	20,908
Unit-based compensation, including general partner net contributions					319	277	219
Balance, Ending period	114,006		115,352		114,006	115,352	115,747
Common Units - Green Plains [Member] | Limited Partners [Member]
Balance, Beginning period		$ (186,635)		(38,505)	(186,635)	(38,505)	(38,653)
Quarterly cash distributions to unitholders					(22,015)	(15,866)	(7,813)
Net income					20,346	16,668	7,961
Conversion of subordinated units						(145,240)
Disposition of Bluffton, Lakota, and Riga assets						114,790
Retirement of units						(118,482)
Balance, Ending period	$ (188,304)		$ (186,635)		$ (188,304)	(186,635)	(38,505)
Subordinated Units [Member] | Limited Partners [Member]
Balance, Beginning period				$ (139,376)		(139,376)	(139,913)
Quarterly cash distributions to unitholders						(22,563)	(28,284)
Net income						16,699	28,821
Conversion of subordinated units						$ 145,240
Balance, Ending period							$ (139,376)