XML 40 R37.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Amended and Restated Credit Agreement (Details) (USD $) |  |  |  |  | 0 Months Ended |  | 0 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Dec. 31, 2012 | Jul. 09, 2013 Line of Credit [Member] Revolving Credit Facility [Member] | Nov. 07, 2012 Line of Credit [Member] Revolving Credit Facility [Member] | Jul. 09, 2013 Line of Credit [Member] | Sep. 30, 2013 Line of Credit [Member] | Jul. 09, 2013 Line of Credit [Member] London Interbank Offered Rate (LIBOR) [Member] United States of America, Dollars | Jul. 09, 2013 Line of Credit [Member] Prime Rate [Member] United States of America, Dollars | Jul. 09, 2013 Line of Credit [Member] Prime Rate [Member] Canada, Dollars | Jul. 09, 2013 Line of Credit [Member] Canadian Dealer Offered Rate (CDOR) [Member] Canada, Dollars
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |
Maximum Borrowing Capacity |  |  |  | $ 400,000,000 | $ 175,000,000 |  |  |  |  |  |
Maximum Borrowing Capacity under Accordion Feature |  |  |  | 450,000,000 |  |  |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  |  |  |  | LIBOR | U.S. dollar prime rate | Canadian dollar prime rate, | CDOR
Weighted Average Interest Rate |  |  |  |  |  |  | 2.00% |  |  |  |
Unused Capacity, Commitment Fee Percentage |  |  |  |  |  | 0.25% |  |  |  |  |
Holdings Note Principal amount outstanding |  |  |  |  |  |  | 102,000,000 |  |  |  |
Borrowings outstanding | 161,000,000 | 90,000,000 | [1] |  |  |  | 161,000,000 |  |  |  |
Letters of Credit Outstanding | 13,500,000 |  |  |  |  |  |  |  |  |  |
Remaining Borrowing Capacity |  |  |  |  |  |  | $ 225,500,000 |  |  |  |
[1] | Includes the historical balances of the Tyler Terminal and Tank Assets. See Notes 1 and 2 for further discussion.

X
- Definition Maximum Borrowing Capacity under Accordion Feature + References No definition available. + Details
Name: | dk_MaximumBorrowingCapacityUnderAccordionFeature
Namespace Prefix: | dk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Related Party Limiited Guaranty of Debt + References No definition available. + Details
Name: | dk_RelatedPartyLimiitedGuarantyofDebt
Namespace Prefix: | dk_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentDescriptionOfVariableRateBasis
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 22 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1314-112600 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=28361426&loc=d3e1336-112600 + Details
Name: | us-gaap_LongTermLineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant