v3.19.3.a.u2

PARTNERS' EQUITY Table 2 - Balance of and Changes in Common Units Outstanding (Details) - shares				9 Months Ended	12 Months Ended
	Nov. 26, 2019	Jun. 29, 2018	Apr. 18, 2017	Sep. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Limited partners common units outstanding (in units)					108,527,806	107,225,156
Common Limited Partner [Member]
Class of Stock [Line Items]
Limited partners common units outstanding (in units)					108,527,806	107,225,156	93,176,683	78,616,228
Issuance of units (units)	527,426	413,736	14,375,000		527,426	413,736	14,375,000
Unit-based compensation (units)					775,224	225,144	185,455
Issuance of NuStar Energy common units as a result of the Merger, incremental units issued				13,400,000	0	13,409,593	0

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Conversion of Stock, Incremental Shares Issued

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The number of limited partner units outstanding.

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Total units issued during the year due to the sale of units. All partners include general, limited and preferred partners.

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