PARTNERS' CAPITAL - Distributions (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended								12 Months Ended
	Jan. 27, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2020	Dec. 31, 2022
PARTNERS' CAPITAL
Period following quarter end for distribution of available cash										45 days
Quarterly distribution paid (in dollars per unit)		$ 0.500	$ 0.400	$ 0.350	$ 0.250	$ 0.200	$ 0.100	$ 0.100	$ 0.400
Distribution declared (in dollars per unit)	$ 0.70
Quarterly distribution declared	$ 89.0