SUBSEQUENT EVENTS - Transactions (Details)	Feb. 22, 2018
Subsequent event \| Merger and Simplification Agreement
Simplification Transactions
Number of business days allowed to execute a written consent under terms of agreement	2 days

Number of business days, after S-4 registration statement is declared effective, allowed under terms of unitholder support agreement to execute written consent to the Merger and Simplification Agreement.

No definition available.

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