Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Details)

v3.19.3.a.u2
Long-Term Debt (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Dec. 31, 2019
Dec. 31, 2017
Sep. 30, 2019
Dec. 31, 2018
Dec. 21, 2016
Mar. 17, 2015
Sep. 18, 2014
May 06, 2014
Nov. 05, 2013
Long- term Debt                    
Long-term debt $ 3,758,868 $ 3,758,868     $ 5,461,688          
Gain on extinguishment of debt repurchased   36,419 $ (1,500)              
Debt Repurchase Program                    
Long- term Debt                    
Gain on extinguishment of debt repurchased 36,000                  
Notional amount debt repurchased $ 225,000 225,000                
Weighted average discount price 17.00%                  
Parent (Antero)                    
Long- term Debt                    
Net unamortized premium $ 791 791     1,241          
Net unamortized debt issuance costs (19,464) (19,464)     (26,700)          
Long-term debt 3,758,868 3,758,868     3,829,541          
Credit Facility                    
Long- term Debt                    
Long-term debt 552,000 552,000     $ 405,000          
Current borrowing base 4,500 4,500                
Lender commitments $ 2,640,000 $ 2,640,000   $ 2,500,000            
Time period prior to maturity date of senior notes as one option for maturity date of Credit Facility   91 days                
Weighted average interest rate (as a percent) 3.28% 3.28%     3.95%          
Outstanding letters of credit $ 623,000 $ 623,000     $ 685,000          
Credit Facility | Parent (Antero)                    
Long- term Debt                    
Bank credit facility long-term debt $ 552,000 $ 552,000     405,000          
Credit Facility | Minimum                    
Long- term Debt                    
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)   0.30%                
Commitment fees on the unused portion during an Investment Grade period (as a percent)   0.15%                
Credit Facility | Minimum | Not Investment Grade Period                    
Long- term Debt                    
Basis points added to the reference rate   0.25%                
Credit Facility | Minimum | Investment Grade Period                    
Long- term Debt                    
Basis points added to the reference rate   0.125%                
Credit Facility | Maximum                    
Long- term Debt                    
Commitment fees on the unused portion during any period that is not an Investment Grade Period (as a percent)   0.375%                
Commitment fees on the unused portion during an Investment Grade period (as a percent)   0.30%                
Credit Facility | Maximum | Not Investment Grade Period                    
Long- term Debt                    
Basis points added to the reference rate   2.25%                
Credit Facility | Maximum | Investment Grade Period                    
Long- term Debt                    
Basis points added to the reference rate   1.75%                
5.375% senior notes due 2021                    
Long- term Debt                    
Interest rate (as a percent) 5.375% 5.375%               5.375%
Senior notes issued                   $ 1,000,000
Issue price as percentage of par value                   100.00%
Redemption price of the debt instrument in the event of change of control (as a percent)   101.00%                
5.375% senior notes due 2021 | Parent (Antero)                    
Long- term Debt                    
Long-term notes payable $ 952,500 $ 952,500     1,000,000          
5.375% senior notes due 2021 | On or after November 1, 2019                    
Long- term Debt                    
Redemption price   100.00%                
Stand-alone revolving note                    
Long- term Debt                    
Maximum amount of the Credit Facility 25,000 $ 25,000                
Outstanding balance $ 0 $ 0                
Stand-alone revolving note | Other current liabilities                    
Long- term Debt                    
Outstanding balance         5,400          
Stand-alone revolving note | Lender's Prime Rate                    
Long- term Debt                    
Basis spread on variable rate (as a percent)   1.00%                
5.125 senior notes due 2022                    
Long- term Debt                    
Interest rate (as a percent) 5.125% 5.125%             5.125%  
Senior notes issued               $ 500,000 $ 600,000  
Issue price as percentage of par value               100.50% 100.00%  
Redemption price   101.281%                
Redemption price at which notes may be required to be repurchased in event of change of control   101.00%                
5.125 senior notes due 2022 | Parent (Antero)                    
Long- term Debt                    
Long-term notes payable $ 923,041 $ 923,041     1,100,000          
5.125 senior notes due 2022 | On or after June 1, 2020                    
Long- term Debt                    
Redemption price of the debt instrument in the event of change of control (as a percent)   100.00%                
5.625% senior notes due 2023                    
Long- term Debt                    
Interest rate (as a percent) 5.625% 5.625%         5.625%      
Senior notes issued             $ 750,000      
Issue price as percentage of par value             100.00%      
Redemption price   102.813%                
Redemption price at which notes may be required to be repurchased in event of change of control   101.00%                
5.625% senior notes due 2023 | Parent (Antero)                    
Long- term Debt                    
Long-term notes payable $ 750,000 $ 750,000     750,000          
5.625% senior notes due 2023 | On Or After June 1, 2021                    
Long- term Debt                    
Redemption price   100.00%                
5.375% senior notes due 2024                    
Long- term Debt                    
Interest rate (as a percent) 5.375% 5.375%                
5.00% senior notes due 2025                    
Long- term Debt                    
Interest rate (as a percent) 5.00% 5.00%       5.00%        
Senior notes issued           $ 600,000        
Issue price as percentage of par value           100.00%        
Redemption price at which notes may be required to be repurchased in event of change of control   101.00%                
5.00% senior notes due 2025 | Parent (Antero)                    
Long- term Debt                    
Long-term notes payable $ 600,000 $ 600,000     600,000          
5.00% senior notes due 2025 | Prior to March 1, 2020                    
Long- term Debt                    
Redemption price   100.00%                
5.00% senior notes due 2025 | On or before March 1, 2020                    
Long- term Debt                    
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)   105.00%                
5.00% senior notes due 2025 | On or after March 1, 2020                    
Long- term Debt                    
Redemption price   103.75%                
5.00% senior notes due 2025 | On or after March1, 2023                    
Long- term Debt                    
Redemption price   100.00%                
Reportable legal entity | Parent (Antero)                    
Long- term Debt                    
Long-term debt $ 3,758,868 $ 3,758,868     3,829,541          
Gain on extinguishment of debt repurchased   $ 36,419 $ (1,205)              
Antero Midstream Partners LP                    
Long- term Debt                    
Net unamortized debt issuance costs         (7,853)          
Long-term debt         1,632,147          
Antero Midstream Partners LP | Midstream Credit Facility                    
Long- term Debt                    
Bank credit facility long-term debt         990,000          
Antero Midstream Partners LP | 5.375% senior notes due 2024                    
Long- term Debt                    
Long-term notes payable         $ 650,000