Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v2.4.0.8
Subsequent Events (Details) (USD $)
1 Months Ended 1 Months Ended 9 Months Ended 0 Months Ended 0 Months Ended
Sep. 30, 2013
5.375% senior notes due 2021
Sep. 30, 2013
9.375% senior notes due 2017
Dec. 31, 2012
9.375% senior notes due 2017
Sep. 30, 2013
7.25% senior notes due 2019
Dec. 31, 2012
7.25% senior notes due 2019
Sep. 30, 2013
6.00% senior notes due 2020
Dec. 31, 2012
6.00% senior notes due 2020
Sep. 30, 2013
9.00% senior note
Dec. 31, 2012
9.00% senior note
Jan. 31, 2010
Antero Finance
9.375% senior notes due 2017
Nov. 30, 2009
Antero Finance
9.375% senior notes due 2017
Sep. 30, 2013
Antero Finance
9.375% senior notes due 2017
Aug. 31, 2011
Antero Finance
7.25% senior notes due 2019
Sep. 30, 2013
Antero Finance
7.25% senior notes due 2019
Feb. 04, 2013
Antero Finance
6.00% senior notes due 2020
Nov. 19, 2012
Antero Finance
6.00% senior notes due 2020
Sep. 30, 2013
Antero Finance
6.00% senior notes due 2020
Oct. 16, 2013
Subsequent event
Initial Public Offering
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
On or after November 1, 2016
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
On or after November 1, 2019
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
On or before November 1, 2016
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
On or before November 1, 2016
Maximum
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
Prior to November 1, 2016
Nov. 05, 2013
Subsequent event
Antero Finance
5.375% senior notes due 2021
Prior to May 1, 2015
Subsequent Event                                                  
Common stock issued (in shares)                                   41,083,750              
Shares issued on exercise of option by underwriters for purchase from selling stockholder                                   3,409,091              
Shares issued on exercise of option by underwriters                                   1,949,659              
Sale of common stock (in shares)                                   37,674,659              
Net proceeds from sale of shares of common stock                                   $ 1,580,000,000              
Senior notes issued                   $ 150,000,000 $ 375,000,000   $ 400,000,000   $ 225,000,000 $ 300,000,000     $ 1,000,000,000            
Interest rate (as a percent) 5.375% 9.375% 9.375% 7.25% 7.25% 6.00% 6.00% 9.00% 9.00%     9.375%   7.25%     6.00%   5.375%            
Redemption price of the debt instrument in the event of change of control (as a percent)                                       104.031% 100.00%     100.00% 110.00%
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings                                             35.00%    
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)                                           105.375%      
Percentage of principal amount at which notes may be required to be repurchased in event of change of control                           101.00%                   101.00%