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Equity (Tables) | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
Schedule of Capital Units | The table below summarizes the changes in the number of units outstanding from December 31, 2014 through December 31, 2017 (in units).
|  | Common - Public |  | Common - Delek |  | Subordinated |  | General Partner |  | Total
Balance at December 31, 2014 |  | 9,417,189 |  |  | 2,799,258 |  |  | 11,999,258 |  |  | 494,197 |  |  | 24,709,902 |
GP units issued to maintain 2% interest |  | — |  |  | — |  |  | — |  |  | 1,248 |  |  | 1,248 |
Unit-based compensation awards (1) |  | 61,084 |  |  | — |  |  | — |  |  | — |  |  | 61,084 |
Balance at December 31, 2015 |  | 9,478,273 |  |  | 2,799,258 |  |  | 11,999,258 |  |  | 495,445 |  |  | 24,772,234 |
GP units issued to maintain 2% interest |  | — |  |  | — |  |  | — |  |  | 1,057 |  |  | 1,057 |
Unit-based compensation awards (1) |  | 51,818 |  |  | — |  |  | — |  |  | — |  |  | 51,818 |
Delek unit repurchases from public |  | (266,676 | ) |  | 266,676 |  |  | — |  |  | — |  |  | — |
Subordinated unit conversion |  | — |  |  | 11,999,258 |  |  | (11,999,258 | ) |  | — |  |  | — |
Balance at December 31, 2016 |  | 9,263,415 |  |  | 15,065,192 |  |  | — |  |  | 496,502 |  |  | 24,825,109 |
GP units issued to maintain 2% interest |  | — |  |  | — |  |  | — |  |  | 1,102 |  |  | 1,102 |
Unit-based compensation awards |  | 54,026 |  |  | — |  |  | — |  |  | — |  |  | 54,026 |
Delek unit repurchases from public |  | (228,854 | ) |  | 228,854 |  |  | — |  |  | — |  |  | — |
Balance at December 31, 2017 |  | 9,088,587 |  |  | 15,294,046 |  |  | — |  |  | 497,604 |  |  | 24,880,237 |
(1) Unit-based compensation awards are presented net of 14,053, 17,276 and 21,144 units withheld for taxes as of December 31, 2017, 2016 and 2015, respectively.
Schedule of Calculation of Net Income Applicable to Partners | The following table presents the allocation of the general partner's interest in net income (in thousands, except percentage of ownership interest):
|  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
Net income attributable to partners |  | $ | 69,409 |  |  | $ | 62,804 |  |  | $ | 66,848 |
Less: General partner's IDRs |  | (17,389 | ) |  | (11,160 | ) |  | (3,904 | )
Net income available to partners |  | $ | 52,020 |  |  | $ | 51,644 |  |  | $ | 62,944 |
General partner's ownership interest |  | 2.0 | % |  | 2.0 | % |  | 2.0 | %
General partner's allocated interest in net income |  | 1,040 |  |  | 1,033 |  |  | 1,259 |
General partner's IDRs |  | 17,389 |  |  | 11,160 |  |  | 3,904 |
Total general partner's interest in net income |  | $ | 18,429 |  |  | $ | 12,193 |  |  | $ | 5,163 |
Schedule of Incentive Distributions Made to Managing Members or General Partners by Distribution | The following table illustrates the percentage allocations of available cash from operating surplus between the unitholders and our general partner based on the specified target distribution levels. The amounts set forth under “Marginal Percentage Interest in Distributions” are the percentage interests of our general partner and our unitholders in any available cash from operating surplus that we distribute up to and including the corresponding amount in the column “Total Quarterly Distribution per Unit Target Amount.” The percentage interests shown for our unitholders and our general partner for the minimum quarterly distribution are also applicable to quarterly distribution amounts that are less than the minimum quarterly distribution. The percentage interests set forth below for our general partner include its 2.0% general partner interest and assume that (i) our general partner has contributed any additional capital necessary to maintain its 2.0% general partner interest and (ii) our general partner has not transferred its IDRs.
|  |  | Target Quarterly Distribution per Unit |  | Marginal Percentage Interest in Distributions
|  |  | Target Amount |  | Unitholders |  | General Partner
Minimum Quarterly Distribution |  |  | $ | 0.37500 |  |  | 98.0 | % |  | 2.0 | %
First Target Distribution |  | above | $ | 0.37500 |  |  | 98.0 | % |  | 2.0 | %
|  | up to | $ | 0.43125 |  |  |  |  |
Second Target Distribution |  | above | $ | 0.43125 |  |  | 85.0 | % |  | 15.0 | %
|  | up to | $ | 0.46875 |  |  |  |  |
Third Target Distribution |  | above | $ | 0.46875 |  |  | 75.0 | % |  | 25.0 | %
|  | up to | $ | 0.56250 |  |  |  |  |
Thereafter |  | thereafter | $ | 0.56250 |  |  | 50.0 | % |  | 50.0 | %
Schedule of Distributions Made to Members or Limited Partners, by Distribution | The table below summarizes the quarterly distributions related to our quarterly financial results:
Quarter Ended |  | Total Quarterly Distribution Per Limited Partner Unit |  | Total Quarterly Distribution Per Limited Partner Unit, Annualized |  | Total Cash Distribution, including general partner interest and IDRs (in thousands) |  | Date of Distribution |  | Unitholders Record Date
December 31, 2015 |  | $ | 0.590 |  |  | $ | 2.36 |  |  | $ | 16,124 |  |  | February 12, 2016 |  | February 5, 2016
March 31, 2016 |  | $ | 0.610 |  |  | $ | 2.44 |  |  | $ | 17,095 |  |  | May 13, 2016 |  | May 5, 2016
June 30, 2016 |  | $ | 0.630 |  |  | $ | 2.52 |  |  | $ | 18,085 |  |  | August 12, 2016 |  | August 5, 2016
September 30, 2016 |  | $ | 0.655 |  |  | $ | 2.62 |  |  | $ | 19,302 |  |  | November 14, 2016 |  | November 7, 2016
December 31, 2016 |  | $ | 0.680 |  |  | $ | 2.72 |  |  | $ | 20,537 |  |  | February 14, 2017 |  | February 3, 2017
March 31, 2017 |  | $ | 0.690 |  |  | $ | 2.76 |  |  | $ | 21,024 |  |  | May 12, 2017 |  | May 5, 2017
June 30, 2017 |  | $ | 0.705 |  |  | $ | 2.82 |  |  | $ | 21,783 |  |  | August 11, 2017 |  | August 4, 2017
September 30, 2017 |  | $ | 0.715 |  |  | $ | 2.86 |  |  | $ | 22,270 |  |  | November 14, 2017 |  | November 7, 2017
December 31, 2017 |  | $ | 0.725 |  |  | $ | 2.90 |  |  | $ | 22,777 |  |  | February 12, 2018 |  | February 2, 2018
The allocation of total quarterly cash distributions made to general and limited partners for the years ended December 31, 2017, 2016 and 2015 is set forth in the table below. Distributions earned with respect to a given period are declared subsequent to quarter end. Therefore, the table below presents total cash distributions applicable to the period in which the distributions are earned (in thousands, except per unit amounts):
|  | Year Ended December 31,
|  | 2017 |  | 2016 |  | 2015
General partner's distributions: |  |  |  |  |  |
General partner's distributions |  | $ | 1,408 |  |  | $ | 1,277 |  |  | $ | 1,109 |
General partner's IDRs |  | 17,389 |  |  | 11,160 |  |  | 3,904 |
Total general partner's distributions |  | 18,797 |  |  | 12,437 |  |  | 5,013 |
Limited partners' distributions: |  |  |  |  |  |
Common |  | 69,057 |  |  | 58,158 |  |  | 27,439 |
Subordinated |  | — |  |  | 4,424 |  |  | 26,878 |
Total limited partners' distributions |  | 69,057 |  |  | 62,582 |  |  | 54,317 |
Total cash distributions |  | $ | 87,854 |  |  | $ | 75,019 |  |  | $ | 59,330 |
Cash distributions per limited partner unit |  | $ | 2.835 |  |  | $ | 2.575 |  |  | $ | 2.240 |

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