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Employee Benefit Plans (Tables) | 12 Months Ended
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Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract] |
Summary of Service-Based And Performance-Based Awards | A summary of our phantom unit activity for our service-based and performance-based awards is set forth below:
| Service-Based Awards |  | Performance-Based Awards
| Number of Phantom Units |  | Average Grant Date Fair Value |  | Total Value (in thousands) |  | Number of Phantom Units |  | Average Grant Date Fair Value |  | Total Value (in thousands)
Unvested at December 31, 2015 | 132,676 |  |  | $ | 48.09 |  |  | $ | 6,380 |  |  | 344,208 |  |  | $ | 47.78 |  |  | $ | 16,446 |
Granted | 84,997 |  |  | $ | 31.67 |  |  | 2,692 |  |  | 254,587 |  |  | $ | 30.38 |  |  | 7,734 |
Forfeited | (3,117 | ) |  | $ | 45.88 |  |  | (143 | ) |  | (4,677 | ) |  | $ | 45.89 |  |  | (215 | )
Settled | (33,326 | ) |  | $ | 47.19 |  |  | (1,573 | ) |  | (110,886 | ) |  | $ | 46.97 |  |  | (5,208 | )
Unvested at December 31, 2016 | 181,230 |  |  | $ | 40.59 |  |  | $ | 7,356 |  |  | 483,232 |  |  | $ | 38.82 |  |  | $ | 18,757 |
Expense Related To Equity-Based Compensation Plans | Equity-based compensation expense from our continuing operations during the three years ended December 31, 2016 was as follows:
|  | Expense Related to Equity-Based Compensation Plans
Consolidated Statement of Operations |  | 2016 |  | 2015 |  | 2014
Supply and logistics operating costs |  | $ | 1,688 |  |  | $ | 1,185 |  |  | $ | 433 |
Marine transportation operating costs |  | 1,089 |  |  | 851 |  |  | 626 |
Refinery services operating costs |  | 547 |  |  | 227 |  |  | (62 | )
Offshore pipeline operating costs |  | 681 |  |  | 94 |  |  | — |
General and administrative expenses |  | 4,575 |  |  | 4,565 |  |  | 5,824 |
Total |  | $ | 8,580 |  |  | $ | 6,922 |  |  | $ | 6,821 |

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- Definition Tabular disclosure of the amount of total share-based compensation cost, including the amounts attributable to each share-based compensation plan and any related tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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