XML 64 R42.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Equity Based Compensation (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2015
Equity Based Compensation [Abstract] |
Schedule of Share-based Compensation, Phantom Units Award Activity [Table Text Block] | A summary of our unit award activity for the years ended December 31, 2015, 2014 and 2013, is set forth below:
|  | Number of Phantom Units |  | Weighted-Average Grant Price
Non-vested | December 31, 2012 | 494,883 |  |  | 22.65 |
Granted |  | 7,500 |  |  | 34.12 |
Vested |  | (184,323 | ) |  | 22.68 |
Forfeited |  | (43,108 | ) |  | 22.65 |
Non-vested | December 31, 2013 | 274,952 |  |  | 22.94 |
Granted |  | 10,000 |  |  | 35.46 |
Vested |  | (69,488 | ) |  | 23.08 |
Non-vested | December 31, 2014 | 215,464 |  |  | $ | 23.48 |
Granted |  | 11,836 |  |  | $ | 39.73 |
Vested |  | (82,228 | ) |  | $ | 23.55 |
Non-vested | December 31, 2015 | 145,072 |  |  | $ | 24.76 |

X
- Definition Equity Based Compensation [Abstract] + References No definition available. + Details
Name: | dk_EquityBasedCompensationAbstract
Namespace Prefix: | dk_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of share-based compensation plans that may be presented in a single table for outstanding, vested and expected to vest, and exercisable awards. The information that may be disclosed in this table may include, but is not limited to, number of shares, weighted average exercise price, weighted average remaining contractual life, and aggregate intrinsic value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration