Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details)

v3.21.1
Long-Term Debt (Details) - USD ($)
3 Months Ended
Nov. 10, 2020
Jun. 28, 2019
Feb. 25, 2019
Sep. 13, 2016
Mar. 31, 2021
Dec. 31, 2020
Mar. 12, 2019
Sep. 03, 2016
Long-term debt                
Total principal         $ 3,124,500,000 $ 3,113,500,000    
Unamortized debt premiums         4,045,000 4,261,000    
Net unamortized debt issuance costs         (25,117,000) (26,135,000)    
Total long-term debt         3,103,428,000 3,091,626,000    
New revolving credit facility                
Long-term debt                
Total principal         624,500,000 613,500,000    
New revolving credit facility | Antero Midstream Partners                
Long-term debt                
Total principal         625,000,000 $ 614,000,000    
Maximum borrowing capacity         $ 2,130,000,000      
Weighted average interest rate (as a percent)         1.61% 1.66%    
Outstanding balance         $ 0 $ 0    
New revolving credit facility | Not Investment Grade Period | Minimum                
Long-term debt                
Commitment fees on the unused portion (as a percent)         0.25%      
New revolving credit facility | Not Investment Grade Period | Maximum                
Long-term debt                
Commitment fees on the unused portion (as a percent)         0.375%      
5.375% Notes Due 2024                
Long-term debt                
Total principal         $ 650,000,000 650,000,000    
Total long-term debt         $ 646,606,000 646,391,000    
5.375% Notes Due 2024 | Finance Corp and together with Antero Midstream Partners                
Long-term debt                
Total principal             $ 652,600,000  
Unamortized debt premiums             2,600,000  
Interest rate (as a percent)       5.375% 5.375%     5.375%
Face amount       $ 650,000,000        
Debt instrument redemption percentage upon change of control       101.00%        
5.375% Notes Due 2024 | Redemption period one | Finance Corp and together with Antero Midstream Partners                
Long-term debt                
Debt instrument redemption percentage       102.688%        
5.375% Notes Due 2024 | Redemption period two | Finance Corp and together with Antero Midstream Partners                
Long-term debt                
Debt instrument redemption percentage       100.00%        
7.875% Senior Notes Due 2026                
Long-term debt                
Total principal         $ 550,000,000 550,000,000    
Total long-term debt         $ 543,511,000 543,267,000    
Interest rate (as a percent) 7.875%       7.875%      
Debt instrument redemption percentage upon change of control 101.00%              
7.875% Senior Notes Due 2026 | Finance Corp and together with Antero Midstream Partners                
Long-term debt                
Interest rate (as a percent) 7.875%              
Face amount $ 550,000,000              
7.875% Senior Notes Due 2026 | Maximum                
Long-term debt                
Percent of aggregate principal amount that can be redeemed 35.00%              
7.875% Senior Notes Due 2026 | Redemption period one                
Long-term debt                
Debt instrument redemption percentage 103.938%              
7.875% Senior Notes Due 2026 | Redemption period two                
Long-term debt                
Debt instrument redemption percentage 100.00%              
7.875% Senior Notes Due 2026 | Redemption period three                
Long-term debt                
Debt instrument redemption percentage 107.875%              
Debt instrument redemption percentage with payment of premium and interest 100.00%              
5.75% Senior Notes Due 2027                
Long-term debt                
Total principal         $ 650,000,000 650,000,000    
Unamortized debt premiums             3,300,000  
Total long-term debt         $ 645,530,000 $ 645,390,000    
Interest rate (as a percent)     5.75%   5.75% 5.75%    
Face amount     $ 650,000,000          
Debt instrument fair value             $ 653,300,000  
Debt instrument redemption percentage upon change of control     101.00%          
5.75% Senior Notes Due 2027 | Maximum                
Long-term debt                
Percent of aggregate principal amount that can be redeemed     35.00%          
5.75% Senior Notes Due 2027 | Redemption period one                
Long-term debt                
Debt instrument redemption percentage     102.875%          
5.75% Senior Notes Due 2027 | Redemption period two                
Long-term debt                
Debt instrument redemption percentage     100.00%          
5.75% Senior Notes Due 2027 | Redemption period three                
Long-term debt                
Debt instrument redemption percentage     105.75%          
Debt instrument redemption percentage with payment of premium and interest     100.00%          
5.75% Senior Notes Due 2028                
Long-term debt                
Total principal         $ 650,000,000 $ 650,000,000    
Total long-term debt         $ 643,281,000 $ 643,078,000    
Interest rate (as a percent)   5.75%     5.75% 5.75%    
Face amount   $ 650,000,000            
Debt instrument redemption percentage upon change of control   101.00%            
5.75% Senior Notes Due 2028 | Maximum                
Long-term debt                
Percent of aggregate principal amount that can be redeemed   35.00%            
5.75% Senior Notes Due 2028 | Redemption period one                
Long-term debt                
Debt instrument redemption percentage   102.875%            
5.75% Senior Notes Due 2028 | Redemption period two                
Long-term debt                
Debt instrument redemption percentage   100.00%            
5.75% Senior Notes Due 2028 | Redemption period three                
Long-term debt                
Debt instrument redemption percentage   105.75%            
Debt instrument redemption percentage with payment of premium and interest   100.00%