Unit Based Awards - Long-Term Incentive Plans - Schedule of compensation costs relate to unit based plan (Details) - Selling, General and Administrative Expense - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense	$ 799	$ 1,422	$ 1,424
Employees | Restricted unit awards
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense	194	1,204	1,226
Employees | Phantom unit Awards
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense	415	0	0
Non-employee directors | Restricted unit awards
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense	190	0	0
Non-employee directors | Phantom unit Awards
Share-based Compensation Arrangement by Share-based Payment Award
Total unit-based compensation expense	$ 0	$ 218	$ 198