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PARTNERS' EQUITY (Tables)
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9 Months Ended |
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Sep. 30, 2014
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| Partners' Capital Notes [Abstract] |
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| Schedule of Changes in Partners' Equity |
The following table summarizes changes in the carrying amount of equity attributable to NuStar Energy L.P. partners and noncontrolling interest: | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended September 30, 2014 | | Three Months Ended September 30, 2013 | | NuStar Energy L.P. Partners’ Equity | | Noncontrolling Interest | | Total Partners’ Equity | | NuStar Energy L.P. Partners’ Equity | | Noncontrolling Interest | | Total Partners’ Equity | | (Thousands of Dollars) | Beginning balance | $ | 1,808,370 |
| | $ | 989 |
| | $ | 1,809,359 |
| | $ | 2,429,132 |
| | $ | 11,134 |
| | $ | 2,440,266 |
| Net income (loss) | 62,121 |
| | (173 | ) | | 61,948 |
| | 33,397 |
| | (161 | ) | | 33,236 |
| Other comprehensive income (loss): | | | | | | | | | | | | Foreign currency translation adjustment | (6,420 | ) | | 14 |
| | (6,406 | ) | | 4,469 |
| | (568 | ) | | 3,901 |
| Net loss on cash flow hedges reclassified into interest expense, net | 2,625 |
| | — |
| | 2,625 |
| | 1,653 |
| | — |
| | 1,653 |
| Total other comprehensive income (loss) | (3,795 | ) | | 14 |
| | (3,781 | ) | | 6,122 |
| | (568 | ) | | 5,554 |
| Cash distributions to partners | (98,051 | ) | | — |
| | (98,051 | ) | | (98,051 | ) | | — |
| | (98,051 | ) | Other | — |
| | (830 | ) | | (830 | ) | | (26 | ) | | — |
| | (26 | ) | Ending balance | $ | 1,768,645 |
| | $ | — |
| | $ | 1,768,645 |
| | $ | 2,370,574 |
| | $ | 10,405 |
| | $ | 2,380,979 |
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| | | | | | | | | | | | | | | | | | | | | | | | | | Nine Months Ended September 30, 2014 | | Nine Months Ended September 30, 2013 | | NuStar Energy L.P. Partners’ Equity | | Noncontrolling Interest | | Total Partners’ Equity | | NuStar Energy L.P. Partners’ Equity | | Noncontrolling Interest | | Total Partners’ Equity | | (Thousands of Dollars) | Beginning balance | $ | 1,902,136 |
| | $ | 1,658 |
| | $ | 1,903,794 |
| | $ | 2,572,384 |
| | $ | 12,611 |
| | $ | 2,584,995 |
| Net income (loss) | 157,379 |
| | (395 | ) | | 156,984 |
| | 91,048 |
| | (439 | ) | | 90,609 |
| Other comprehensive income (loss): | | | | | | | | | | | | Foreign currency translation adjustment | (4,802 | ) | | (433 | ) | | (5,235 | ) | | (10,628 | ) | | (1,767 | ) | | (12,395 | ) | Net unrealized gain on cash flow hedges | — |
| | — |
| | — |
| | 7,213 |
| | — |
| | 7,213 |
| Net loss on cash flow hedges reclassified into interest expense, net | 8,062 |
| | — |
| | 8,062 |
| | 4,615 |
| | — |
| | 4,615 |
| Total other comprehensive income (loss) | 3,260 |
| | (433 | ) | | 2,827 |
| | 1,200 |
| | (1,767 | ) | | (567 | ) | Cash distributions to partners | (294,153 | ) | | — |
| | (294,153 | ) | | (294,153 | ) | | — |
| | (294,153 | ) | Other | 23 |
| | (830 | ) | | (807 | ) | | 95 |
| | — |
| | 95 |
| Ending balance | $ | 1,768,645 |
| | $ | — |
| | $ | 1,768,645 |
| | $ | 2,370,574 |
| | $ | 10,405 |
| | $ | 2,380,979 |
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| Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
The balance of and changes in the components included in “Accumulated other comprehensive loss” were as follows: | | | | | | | | | | | | | | Foreign Currency Translation | | Cash Flow Hedges | | Total | | (Thousands of Dollars) | Balance as of January 1, 2014 | $ | (13,658 | ) | | $ | (49,736 | ) | | $ | (63,394 | ) | Activity | (4,802 | ) | | 8,062 |
| | 3,260 |
| Balance as of September 30, 2014 | $ | (18,460 | ) | | $ | (41,674 | ) | | $ | (60,134 | ) |
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| Schedule of Calculation of Net Income Applicable to General Partner [Text Block] |
The following table details the calculation of net income applicable to the general partner: | | | | | | | | | | | | | | | | | | Three Months Ended
September 30, | | Nine Months Ended
September 30, | | 2014 | | 2013 | | 2014 | | 2013 | | (Thousands of Dollars) | Net income attributable to NuStar Energy L.P. | $ | 62,121 |
| | $ | 33,397 |
| | $ | 157,379 |
| | $ | 91,048 |
| Less general partner incentive distribution | 10,805 |
| | 10,805 |
| | 32,415 |
| | 32,415 |
| Net income after general partner incentive distribution | 51,316 |
| | 22,592 |
| | 124,964 |
| | 58,633 |
| General partner interest | 2 | % | | 2 | % | | 2 | % | | 2 | % | General partner allocation of net income after general partner incentive distribution | 1,025 |
| | 452 |
| | 2,498 |
| | 1,174 |
| General partner incentive distribution | 10,805 |
| | 10,805 |
| | 32,415 |
| | 32,415 |
| Net income applicable to general partner | $ | 11,830 |
| | $ | 11,257 |
| | $ | 34,913 |
| | $ | 33,589 |
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| Schedule of Distributions To General and Limited Partners [Text Block] |
The following table reflects the allocation of total cash distributions to the general and limited partners applicable to the period in which the distributions were earned: | | | | | | | | | | | | | | | | | | Three Months Ended
September 30, | | Nine Months Ended
September 30, | | 2014 | | 2013 | | 2014 | | 2013 | | (Thousands of Dollars, Except Per Unit Data) | General partner interest | $ | 1,961 |
| | $ | 1,961 |
| | $ | 5,883 |
| | $ | 5,883 |
| General partner incentive distribution | 10,805 |
| | 10,805 |
| | 32,415 |
| | 32,415 |
| Total general partner distribution | 12,766 |
| | 12,766 |
| | 38,298 |
| | 38,298 |
| Limited partners’ distribution | 85,285 |
| | 85,285 |
| | 255,855 |
| | 255,855 |
| Total cash distributions | $ | 98,051 |
| | $ | 98,051 |
| | $ | 294,153 |
| | $ | 294,153 |
| | | | | | | | | Cash distributions per unit applicable to limited partners | $ | 1.095 |
| | $ | 1.095 |
| | $ | 3.285 |
| | $ | 3.285 |
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| Distributions Made to Limited and General Partners, by Distribution [Table Text Block] |
The following table summarizes information related to our quarterly cash distributions: | | | | | | | | | | | | | | Quarter Ended | | Cash Distributions Per Unit | | Total Cash Distributions | | Record Date | | Payment Date | | | | | (Thousands of Dollars) | | | | | September 30, 2014 (a) | | $ | 1.095 |
| | $ | 98,051 |
| | November 10, 2014 | | November 14, 2014 | June 30, 2014 | | $ | 1.095 |
| | $ | 98,051 |
| | August 6, 2014 | | August 11, 2014 | March 31, 2014 | | $ | 1.095 |
| | $ | 98,051 |
| | May 7, 2014 | | May 12, 2014 | December 31, 2013 | | $ | 1.095 |
| | $ | 98,051 |
| | February 10, 2014 | | February 14, 2014 |
| | (a) | The distribution was announced on October 31, 2014. |
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