Condensed Consolidated Statements of Partners' Capital and Noncontrolling Interests (Unaudited) - USD ($) shares in Thousands, $ in Thousands	Total	Noncontrolling Interests	General Partners	Limited Partners
Beginning balance (in units) at Dec. 31, 2018	4,313
Beginning balance at Dec. 31, 2018	$ 338,600	$ 281,123	$ 944	$ 56,533
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	767	(2,544)	46	3,265
Cash distributions	(7,442)	(3,076)	(61)	(4,305)
Capital call	17,259	17,259
Preferred stock issuance	$ 125	125
Equity-based compensation (in units)	17
Equity-based compensation	$ 593		8	585
Units issued under distribution reinvestment plan (in units)	0
Units issued under distribution reinvestment plan	$ 24			24
Unit repurchases (in units)	(3)
Unit repurchases	$ (166)			(166)
Payroll taxes paid on unit net settlements (in units)	(1)
Payroll taxes paid on unit net settlements	$ (79)		(1)	(78)
Ending balance (in units) at Mar. 31, 2019	4,326
Ending balance at Mar. 31, 2019	$ 349,681	292,887	936	55,858
Beginning balance (in units) at Dec. 31, 2019	4,318
Beginning balance at Dec. 31, 2019	$ 318,993	276,232	751	42,010
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	(7,630)	(3,689)	(55)	(3,886)
Cash distributions	$ (4,367)	0	(61)	(4,306)
Equity-based compensation (in units)	15
Equity-based compensation	$ 757		10	747
Ending balance (in units) at Mar. 31, 2020	4,333
Ending balance at Mar. 31, 2020	$ 307,753	$ 272,543	$ 645	$ 34,565