Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Details)

v3.20.4
Long-Term Debt (Details) - USD ($)
12 Months Ended
Nov. 10, 2020
Jun. 28, 2019
Feb. 25, 2019
Sep. 13, 2016
Dec. 31, 2020
Dec. 31, 2019
Mar. 12, 2019
Long-term debt              
Total principal         $ 3,113,500,000 $ 2,909,500,000  
Unamortized debt premiums         4,261,000 5,142,000  
Net unamortized debt issuance costs         (26,135,000) (22,393,000)  
Total long-term debt         3,091,626,000 2,892,249,000  
New revolving credit facility              
Long-term debt              
Total principal         613,500,000 959,500,000  
New revolving credit facility | Antero Midstream Partners              
Long-term debt              
Total principal         614,000,000 $ 960,000,000  
Maximum borrowing capacity         $ 2,130,000,000    
Weighted average interest rate (as a percent)         1.66% 3.15%  
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         $ 646,391,000 645,580,000  
Interest rate (as a percent)   5.75%     5.375%    
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%      
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    
Total long-term debt         $ 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         $ 645,390,000 644,868,000  
Interest rate (as a percent)     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         $ 643,078,000 $ 642,301,000  
Interest rate (as a percent)   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%