EARNINGS PER UNIT - Computation of Basic and Diluted Earnings per Unit (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Earnings Per Share [Abstract]
NET INCOME (LOSS)	$ (7,002)	$ 16,186
Distributions on Series B cumulative convertible preferred units	(5,250)	(5,250)
NET INCOME (LOSS) ATTRIBUTABLE TO THE GENERAL PARTNER AND COMMON UNITS	(12,252)	10,936
ALLOCATION OF NET INCOME (LOSS):
General partner interest	0	0
Common units	(12,252)	10,936
NET INCOME (LOSS) ATTRIBUTABLE TO THE GENERAL PARTNER AND COMMON UNITS	$ (12,252)	$ 10,936
NET INCOME (LOSS) ATTRIBUTABLE TO LIMITED PARTNERS PER COMMON UNIT:
Per common unit (basic) (in dollars per share)	$ (0.06)	$ 0.05
Per common unit (diluted) (in dollars per share)	$ (0.06)	$ 0.05
WEIGHTED AVERAGE COMMON UNITS OUTSTANDING:
Weighted average common units outstanding (basic) (in shares)	209,323	207,442
Effect of dilutive securities (in shares)	0	0
Weighted average units outstanding (diluted) (in shares)	209,323	207,442