LONG-TERM DEBT (Details 2) $ in Thousands		6 Months Ended
Jun. 26, 2015 USD ($)	Jun. 30, 2015 USD ($)
Long-Term Debt
Outstanding balance of senior notes paid		$ 205,000
ARLP Debt Arrangements
Long-Term Debt
ARLP debt arrangements requirements, period over which the ratios are required to be maintained		1 year
Actual debt to cash flow ratio for trailing twelve months		1.09
Actual cash flow to interest expense ratio for trailing twelve months		23.9
ARLP Debt Arrangements \| Maximum
Long-Term Debt
ARLP debt arrangements requirements, debt to cash flow ratio		3.0
ARLP Debt Arrangements \| Minimum
Long-Term Debt
ARLP debt arrangements requirements, cash flow to interest expense ratio		3.0
ARLP Revolving credit facility
Long-Term Debt
Revolving credit facility		$ 700,000
Letters of credit outstanding		5,400
Line of credit facility, available for borrowing		$ 301,600
Annual commitment fee percentage, undrawn portion		0.25%
Frequency of commitment fee on undrawn portion		annual
ARLP Securitization facility
Long-Term Debt
Revolving credit facility		$ 100,000
Initial term		364 days
Extended term		364 days
Line of credit facility outstanding amount		$ 100,000
ARLP Series A Senior Notes
Long-Term Debt
Outstanding balance of senior notes paid	$ 205,000

Represents the ratio of cash flow to interest expense.

No definition available.

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- Definition

Represents the period over which the ratios required under the terms of the debt agreement are calculated.

+ References

No definition available.

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- Definition

Represents the cash flow to interest expense ratio required under the terms of the debt agreement.

+ References

No definition available.

+ Details

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- Definition

Represents the debt to cash flow ratio required under the terms of the debt agreement.

+ References

No definition available.

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- Definition

Represents the ratio of debt to cash flow.

+ References

No definition available.

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- Definition

The minimum period beyond which the entity has the option and intent to extend the term of the facility.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions 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 FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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- Definition

Description of when the fee for available but unused credit capacity is required to be paid (for example, annually, quarterly, or monthly).

+ 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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- 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

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- 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

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- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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