Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

v2.4.0.8
Long-Term Debt (Details) (USD $)
3 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 0 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
May 23, 2014
Dec. 31, 2013
Jun. 30, 2014
Bank credit facility
Dec. 31, 2013
Bank credit facility
Jul. 28, 2014
Bank credit facility
Subsequent event
Jun. 30, 2014
Bank credit facility
Minimum
Jun. 30, 2014
Bank credit facility
Maximum
May 23, 2014
7.25% senior notes due 2019
Jun. 30, 2014
7.25% senior notes due 2019
Dec. 31, 2013
7.25% senior notes due 2019
Jun. 30, 2014
7.25% senior notes due 2019
Antero Finance
On or after August 1, 2017
Jun. 30, 2014
6.00% senior notes due 2020
Dec. 31, 2013
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
Jun. 30, 2014
6.00% senior notes due 2020
Antero Finance
On or after December 1, 2015
Jun. 30, 2014
6.00% senior notes due 2020
Antero Finance
On or after December 1, 2018
Jun. 30, 2014
6.00% senior notes due 2020
Antero Finance
On or before December 1, 2015
Jun. 30, 2014
6.00% senior notes due 2020
Antero Finance
Prior to December 1, 2015
Jun. 30, 2014
6.00% senior notes due 2020
Maximum
Antero Finance
On or before December 1, 2015
Jun. 30, 2014
5.375% senior notes due 2021
Dec. 31, 2013
5.375% senior notes due 2021
Nov. 05, 2013
5.375% senior notes due 2021
Jun. 30, 2014
5.375% senior notes due 2021
On or after November 1, 2016
Jun. 30, 2014
5.375% senior notes due 2021
On or after November 1, 2019
Jun. 30, 2014
5.375% senior notes due 2021
Prior to November 1, 2016
Jun. 30, 2014
5.375% senior notes due 2021
On or before November 1, 2014
Jun. 30, 2014
5.375% senior notes due 2021
Control prior to May 1, 2016
Jun. 30, 2014
5.375% senior notes due 2021
Minimum
On or before November 1, 2014
Jun. 30, 2014
5.125% senior notes due 2022
May 06, 2014
5.125% senior notes due 2022
Jun. 30, 2014
5.125% senior notes due 2022
Prior to December 1, 2015
Jun. 30, 2014
5.125% senior notes due 2022
On or after June 1, 2017
Jun. 30, 2014
5.125% senior notes due 2022
On or after June 1, 2020
Jun. 30, 2014
5.125% senior notes due 2022
On or before June 1, 2015
Jun. 30, 2014
5.125% senior notes due 2022
Prior to June 1, 2017
Jun. 30, 2014
5.125% senior notes due 2022
Minimum
On or before June 1, 2015
Jun. 30, 2014
Net unamortized premium
Dec. 31, 2013
Net unamortized premium
Jul. 28, 2014
Midstream Facility
Subsequent event
Jun. 30, 2014
Stand-alone revolving note
Dec. 31, 2013
Stand-alone revolving note
May 23, 2014
5.125% senior subordinated notes due 2022
Long- term Debt                                                                                          
Long-term debt $ 3,370,636,000 $ 3,370,636,000   $ 2,078,999,000 $ 1,240,000,000 $ 288,000,000           $ 260,000,000   $ 525,000,000 $ 525,000,000               $ 1,000,000,000 $ 1,000,000,000               $ 600,000,000               $ 5,636,000 $ 5,999,000        
Interest rate (as a percent)     7.25%               7.25% 7.25%   6.00% 6.00%               5.375% 5.375% 5.375%             5.125% 5.125%                       5.125%
Maximum amount of the Credit Facility         3,500,000,000                                                                           25,000,000    
Current borrowing base         3,000,000,000                                                                                
Lender commitments before amendment         2,000,000,000                                                                                
Lender commitments             2,500,000,000                                                                     400,000,000      
Outstanding balance         1,240,000,000 288,000,000                                                                         0 0  
Weighted average interest rate (as a percent)         2.03% 1.61%                                                                              
Outstanding letters of credit         237,000,000 32,000,000                                                                              
Commitment fees on the unused portion (as a percent)               0.375% 0.50%                                                                        
Senior notes redeemed                   260,000,000                                                                      
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from initial public offering                   100.00%                                                                      
Loss on Early Extinguishment of Debt (20,386,000) (20,386,000)               17,400,000                                                                      
Deferred financing costs charged to loss on early extinguishment of debt                   3,000,000                                                                      
Senior notes issued                               $ 225,000,000 $ 300,000,000               $ 1,000,000,000               $ 600,000,000                        
Issue price as percentage of par value                               103.00%                                                          
Redemption price of the debt instrument in the event of change of control (as a percent)                         100.00%         104.50% 100.00% 100.00%           104.031% 100.00% 100.00%             103.844% 101.00%   100.00%              
Percentage of the principal amount of the debt instrument redeemed                                                           110.00%       110.00%                      
Percentage of the principal amount of the notes, plus accrued interest of the debt instrument redeemed                           101.00%                 101.00%           105.375%               105.125%                
Percentage of the principal amount of the debt instrument which the entity may redeem with the proceeds from certain equity offerings                                           35.00%                 35.00%               35.00%            
Redemption price of the debt instrument if redeemed with the proceeds of certain equity offerings (as a percent)                                       106.00%                                                  
Percentage of principal amount at which notes may be required to be repurchased in event of change of control                                         101.00%                                                
Description of variable rate basis         LIBOR or lender's prime rate                                                                           lender's prime rate    
Basis spread on variable rate (as a percent)                                                                                     1.00%