Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies (Details 2)

v2.4.0.8
Basis of Presentation and Significant Accounting Policies (Details 2) (USD $)
In Millions, unless otherwise specified
9 Months Ended 1 Months Ended 1 Months Ended 0 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Antero Finance
Sep. 30, 2013
Antero Resources LLC
Sep. 30, 2013
9.375% senior notes due 2017
Dec. 31, 2012
9.375% senior notes due 2017
Jan. 31, 2010
9.375% senior notes due 2017
Antero Finance
Nov. 30, 2009
9.375% senior notes due 2017
Antero Finance
Sep. 30, 2013
9.375% senior notes due 2017
Antero Finance
Sep. 30, 2013
7.25% senior notes due 2019
Dec. 31, 2012
7.25% senior notes due 2019
Aug. 31, 2011
7.25% senior notes due 2019
Antero Finance
Sep. 30, 2013
7.25% senior notes due 2019
Antero Finance
Sep. 30, 2013
6.00% senior notes due 2020
Dec. 31, 2012
6.00% senior notes due 2020
Feb. 04, 2013
6.00% senior notes due 2020
Antero Finance
Nov. 19, 2012
6.00% senior notes due 2020
Antero Finance
Sep. 30, 2013
6.00% senior notes due 2020
Antero Finance
Guarantees                                  
Senior notes issued           $ 150 $ 375       $ 400       $ 225 $ 300  
Interest rate (as a percent)       9.375% 9.375%     9.375% 7.25% 7.25%   7.25% 6.00% 6.00%     6.00%
Amount of independent assets     0                            
Amount of independent operations     $ 0                            
Ownership percentage   100.00%                              
Restricted assets of wholly owned subsidiaries as percentage of net assets considered for transfer to the parent company, maximum 25.00%