Subsequent Events (Details) (USD $) In Millions, unless otherwise specified							6 Months Ended
	Jun. 30, 2014 Commodity derivative contracts with swap price Q3 2014 bbl	Jun. 30, 2014 Commodity derivative contracts with swap price Q4 2014 bbl	Jun. 30, 2014 Commodity derivative contracts with swap price Q1 2015 bbl	Jun. 30, 2014 Commodity derivative contracts with swap price Q2 2015 bbl	Jun. 30, 2014 Commodity derivative contracts with swap price Q3 2015 bbl	Jun. 30, 2014 Commodity derivative contracts with swap price Q4 2015 bbl	Jun. 30, 2014 Subsequent event Midland Basin	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q3 2014 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q4 2014 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q1 2015 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q2 2015 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q3 2015 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q4 2015 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q1 2016 bbl	Aug. 21, 2014 Subsequent event Commodity derivative contracts with swap price Q2 2016 bbl
Subsequent events
Average Daily Swap Volume	9,950	10,961	9,800	9,800	4,300	4,300		9,950	10,961	12,800	12,800	11,800	11,800	2,500	2,500
Weighted-Average Swap Price	92.52	92.31	90.90	90.90	91.11	91.11		92.52	92.31	92.12	92.12	93.69	93.69	92.35	92.35
Purchase price							$ 382

Athlon Holdings LP 10-Q