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Equity Equity | 12 Months Ended
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Dec. 31, 2017
Equity [Abstract] |
Equity | Equity We had 9,088,587 common limited partner units held by the public outstanding as of December 31, 2017. Additionally, as of December 31, 2017, Delek owned a 61.5% limited partner interest in us, consisting of 15,294,046 common limited partner units and a 94.6% interest in our general partner, which owns the entire 2.0% general partner interest consisting of 497,604 general partner units. Affiliates, who are also members of our general partner's management and board of directors, own the remaining 5.4% interest in our general partner. Equity Activity On February 25, 2016, the requirements under the Partnership Agreement for the conversion of all subordinated units into common units were satisfied, and the subordination period ended. As a result, in the first quarter of 2016, all of the Partnership's 11,999,258 outstanding subordinated units converted into common units and began participating pro rata with the other common units in distributions of available cash. The conversion did not impact the amount of the cash distribution paid or the total number of the Partnership's outstanding units representing limited partner interests. 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. Issuance of Additional Securities Our Partnership Agreement authorizes us to issue an unlimited number of additional partnership securities for the consideration and on the terms and conditions determined by our general partner without the approval of the unitholders. Costs associated with the issuance of securities are allocated to all unitholders' capital accounts based on their ownership interest at the time of issuance. Allocations of Net Income Our Partnership Agreement contains provisions for the allocation of net income and loss to the unitholders and our general partner. For purposes of maintaining partner capital accounts, the Partnership Agreement specifies that items of income and loss shall be allocated among the partners in accordance with their respective percentage interest. Normal allocations according to percentage interests are made after giving effect to priority income allocations in an amount equal to incentive cash distributions allocated 100% to our general partner. 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 |
Incentive Distribution Rights 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 | %
Cash Distributions Our Partnership Agreement sets forth the calculation to be used to determine the amount and priority of available cash distributions that our limited partner unitholders and general partner will receive. Our distributions earned with respect to a given period are declared subsequent to quarter end. 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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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
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