Represents the ratio of cash flow to interest expense.

No definition available.

Name:	ahgp_CashFlowToInterestExpenseRatioActual
Namespace Prefix:	ahgp_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	ahgp_DebtArrangementsPeriodOverWhichRatiosAreCalculated
Namespace Prefix:	ahgp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	ahgp_DebtInstrumentCovenantsCashFlowToInterestExpenseRatio
Namespace Prefix:	ahgp_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

Name:	ahgp_DebtInstrumentCovenantsDebtToCashFlowRatio
Namespace Prefix:	ahgp_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the required periodic payments applied to principal as a percent of the aggregate advances outstanding.

+ References

No definition available.

+ Details

Name:	ahgp_DebtInstrumentQuarterlyPrincipalRepaymentPercentage
Namespace Prefix:	ahgp_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the ratio of debt to cash flow.

+ References

No definition available.

+ Details

Name:	ahgp_DebtToCashFlowRatioActual
Namespace Prefix:	ahgp_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of separate capital lease obligations the entity is permitted to enter into per annum, under the terms of the credit agreement.

+ References

No definition available.

+ Details

Name:	ahgp_LineOfCreditFacilityCovenantTermsCapitalLeaseTransactions
Namespace Prefix:	ahgp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of separate sale-leaseback arrangements the entity is permitted to enter into per annum, under the terms of the credit agreement.

+ References

No definition available.

+ Details

Name:	ahgp_LineOfCreditFacilityCovenantTermsSaleLeasebackTransactions
Namespace Prefix:	ahgp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=34725769&loc=d3e28878-108400

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

+ Details

Name:	us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- 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.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

- Definition

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

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityFrequencyOfCommitmentFeePayment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

- Details

Name:	us-gaap_DebtInstrumentAxis=ahgp_AllianceResourcePartnersDebtArrangementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ahgp_AllianceResourcePartnersLpCreditAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ahgp_AllianceResourcePartnersLpRevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ahgp_AllianceResourcePartnersLpTermLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ahgp_DebtInstrumentRepaymentPeriodAxis=ahgp_RepaymentPeriodJune2014ToMarch2016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ahgp_DebtInstrumentRepaymentPeriodAxis=ahgp_RepaymentPeriodJune2016ToDecember2016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=ahgp_AllianceResourcePartnersLpSeriesBSeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

LONG-TERM DEBT - ARLP Debt Arrangements (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Oct. 16, 2015 USD ($)	Oct. 15, 2015 USD ($)	May. 23, 2012 USD ($)	Jun. 26, 2008 USD ($)
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	1.19
Actual cash flow to interest expense ratio for trailing twelve months	24.2
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 Credit Agreement
Long-Term Debt
Effective interest rate (as a percent)	2.06%
ARLP Revolving Credit Facility
Long-Term Debt
Revolving credit facility				$ 700.0
Maximum separate capital lease obligations allowed per annum		$ 100.0	$ 10.0
Maximum separate sale-leaseback transactions allowed per annum		$ 100.0	$ 10.0
Letters of credit outstanding	$ 5.9
Line of credit facility, available for borrowing	$ 309.1
Frequency of commitment fee on undrawn portion	annual
Annual commitment fee percentage, undrawn portion	0.25%
ARLP Term Loan
Long-Term Debt
Aggregate principal amount				$ 250.0
ARLP Term Loan \| June 2014 through March 2016
Long-Term Debt
Quarterly principal payments (as a percent)	2.50%
ARLP Term Loan \| June 2016 through December 2016
Long-Term Debt
Quarterly principal payments (as a percent)	20.00%
ARLP Series B Senior Notes
Long-Term Debt
Aggregate principal amount					$ 145.0
Interest rate (as a percent)	6.72%