CONSOLIDATED STATEMENTS OF PARTNERS' EQUITY (DEFICIT) (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Partners' Capital [Abstract]
Partnership distribution declared, per unit (in dollars per share)	$ 0.935	$ 3.710	$ 3.595
Foreign currency translation adjustment, tax	$ (546)	$ (2,161)	$ 3,862
Cash flow hedge, gain (loss), after reclassification, tax			$ (1,094)