XML 96 R74.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Goodwill (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2013
Goodwill [Roll Forward] |  |  |
Beginning Balance | $ 11,654 | [1] | $ 10,454
Acquisitions | 549 |  | 1,200
Ending Balance | 12,203 |  | 11,654
Wholesale Marketing and Terminalling |  |  |
Goodwill [Roll Forward] |  |  |
Beginning Balance | 7,499 |  | 7,499
Acquisitions | 0 |  | 0
Ending Balance | 7,499 |  | 7,499
Pipelines and Transportation |  |  |
Goodwill [Roll Forward] |  |  |
Beginning Balance | 4,155 |  | 2,955
Acquisitions | 549 |  | 1,200
Ending Balance | $ 4,704 |  | $ 4,155
[1] | Adjusted to include the historical balances of the Logistics Assets Predecessor. See Notes 1 and 3 for further discussion.

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_GoodwillRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dk_WholesaleMarketingAndTerminallingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=dk_PipelinesAndTransportationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |