Per unit of ownership amount of cash distributions paid to unit-holder of a limited partnership (LP).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70434-108055

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 272
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

Name:	us-gaap_DistributionMadeToLimitedPartnerDistributionsPaidPerUnit
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

Cash Distributions to Shareholders (Details) - USD ($) $ / shares in Units, $ in Thousands							9 Months Ended	12 Months Ended
	Aug. 17, 2018	May 23, 2018	Feb. 20, 2018	Nov. 23, 2017	Sep. 13, 2017	Aug. 23, 2017	Sep. 30, 2018	Dec. 31, 2017
Quarterly distribution paid
Distributions	$ 23,276	$ 20,109	$ 13,964	$ 10,985	$ 15,908	$ 5,026	$ 57,349	$ 31,919
Distributions per common share	$ 0.1250	$ 0.1080	$ 0.0750	$ 0.0590		$ 0.0270
Common shareholders
Quarterly distribution paid
Distributions	$ 23,276	$ 20,109	$ 13,964	$ 10,985		$ 5,026	$ 57,349	16,011
Antero Resources Investment
Quarterly distribution paid
Distributions					$ 15,908			$ 15,908