The percentage incentive distribution to which the noncontrolling owner of the investment is entitled as managing member.

No definition available.

+ Details

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

- Definition

The distributions of earnings to an entity that is affiliated with the reporting entity by means of direct or indirect ownership.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585

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Balance Type:	credit
Period Type:	duration

- 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

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Balance Type:	na
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- Definition

Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 5A
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=77990344&loc=SL6759159-111685

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=ahgp_CavalierMineralsMember
Namespace Prefix:
Data Type:	na
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- Details

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Data Type:	na
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- Details

Name:	us-gaap_CounterpartyNameAxis=ahgp_BluegrassMineralsManagementLlcMember
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Data Type:	na
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	dei_LegalEntityAxis=ahgp_AllianceMineralsMember
Namespace Prefix:
Data Type:	na
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- Details

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VARIABLE INTEREST ENTITIES - Cavalier Minerals Distributions (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Variable Interest Entities
Distributions paid to Partners	$ 153,549	$ 156,242	$ 225,833
Cavalier Minerals \| Alliance Minerals
Variable Interest Entities
Distributions paid to Partners	$ 24,385	4,546
Cavalier Minerals \| Bluegrass Minerals
Variable Interest Entities
Incentive distribution for noncontrolling owners (as a percent)	25.00%
Distributions paid to Partners	$ 1,016	$ 189
Variable Interest Entity, Primary Beneficiary \| Alliance Minerals \| Cavalier Minerals
Variable Interest Entities
Ownership interest in VIE (as a percent)	96.00%	96.00%