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Debt - Narrative (Details) - USD ($)
3 Months Ended 9 Months Ended
Feb. 29, 2020
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2020
Sep. 30, 2021
Sep. 30, 2020
Apr. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]                  
Maximum borrowing capacity under revolving credit agreement             $ 1,350,000,000    
Outstanding borrowing   $ 0     $ 0        
Letters of credit amount outstanding   2,300,000     2,300,000        
Principal   1,750,000,000     1,750,000,000       $ 1,750,000,000
Fair value of financing arrangements   37,300,000     37,300,000       43,900,000
Loss on early extinguishment of debt   0 $ 0   0 $ (25,915,000)      
Capitalized interest   4,800,000 $ 1,100,000   $ 9,500,000 $ 2,400,000      
Base Rate | Minimum                  
Debt Instrument [Line Items]                  
Variable rate spread         0.25%        
Base Rate | Maximum                  
Debt Instrument [Line Items]                  
Variable rate spread         1.125%        
LIBOR | Minimum                  
Debt Instrument [Line Items]                  
Variable rate spread         1.25%        
LIBOR | Maximum                  
Debt Instrument [Line Items]                  
Variable rate spread         2.125%        
CDOR Rate | Minimum                  
Debt Instrument [Line Items]                  
Variable rate spread         1.25%        
CDOR Rate | Maximum                  
Debt Instrument [Line Items]                  
Variable rate spread         2.125%        
2.625% Senior Notes                  
Debt Instrument [Line Items]                  
Principal   $ 350,000,000     $ 350,000,000       350,000,000
Stated interest rate   2.625%     2.625%        
5.875% Senior Notes                  
Debt Instrument [Line Items]                  
Principal   $ 1,000,000,000     $ 1,000,000,000       1,000,000,000
Stated interest rate   5.875%     5.875%        
4.500% Senior Notes                  
Debt Instrument [Line Items]                  
Principal   $ 400,000,000     $ 400,000,000       400,000,000
Stated interest rate   4.50%     4.50%        
HEP 5.000% Senior Notes                  
Debt Instrument [Line Items]                  
Stated interest rate 5.00%                
Aggregate principal amount of senior note $ 500,000,000                
HEP                  
Debt Instrument [Line Items]                  
Maximum borrowing capacity under revolving credit agreement             1,200,000,000 $ 1,400,000,000  
Outstanding borrowing   $ 840,500,000     $ 840,500,000       913,500,000
Letters of credit amount outstanding   $ 0     0        
Maximum borrowing capacity with accordion feature             1,700,000,000    
Proceeds from line of credit         210,500,000        
Repayments of lines of credit         $ 283,500,000        
Effective interest rate on debt   2.32%     2.32%        
Redemption cost 522,500,000                
Loss on early extinguishment of debt       $ (25,900,000)          
Debt redemption premium       22,500,000          
Unamortized discount       $ 3,400,000          
HEP | Letter of Credit                  
Debt Instrument [Line Items]                  
Line of credit, maximum capacity available             $ 50,000,000    
HEP | HEP 5.000% Senior Notes                  
Debt Instrument [Line Items]                  
Principal   $ 500,000,000     $ 500,000,000       $ 500,000,000
Stated interest rate   5.00%     5.00%        
HEP | 6.0% Senior Notes                  
Debt Instrument [Line Items]                  
Principal $ 500,000,000                
Stated interest rate 6.00%