XML 38 R44.htm IDEA: XBRL DOCUMENT v3.20.1
Fair Value (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Assets      
Derivative Assets, Fair Value, Gross Asset $ 508,901   $ 75,808
Liabilities      
Derivative Liability, Fair Value, Gross Liability 15,479   54,290
Oil and Gas Property [Abstract]      
Impairment of proved oil and gas properties and related support equipment 956,700 $ 0  
Abandonment and impairment of unproved properties [1] 33,100 6,300  
Impairment $ 989,763 $ 6,338  
6.125% Senior Notes due 2022 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 6.125%    
Principal amount $ 436,047   476,796
Long-term Debt, Fair Value $ 190,771   481,564
5.0% Senior Notes due 2024 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 5.00%    
Principal amount $ 500,000   500,000
Long-term Debt, Fair Value $ 148,750   479,815
5.625% Senior Notes due 2025 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 5.625%    
Principal amount $ 500,000   500,000
Long-term Debt, Fair Value $ 145,000   475,835
6.75% Senior Notes due 2026 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 6.75%    
Principal amount $ 500,000   500,000
Long-term Debt, Fair Value $ 150,000   494,860
6.625% Senior Notes due 2027 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 6.625%    
Principal amount $ 500,000   500,000
Long-term Debt, Fair Value $ 149,215   493,750
1.50% Senior Convertible Notes Due 2021 [Member]      
Debt Instrument, Fair Value Disclosure [Abstract]      
Senior Notes, interest rate, stated percentage 1.50%    
Principal amount $ 172,500   172,500
Long-term Debt, Fair Value 69,576   164,430
Fair Value, Nonrecurring [Member]      
Assets      
Total property and equipment, net, recorded at fair value [2]     0
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Assets      
Total property and equipment, net, recorded at fair value [2] 0    
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Assets      
Total property and equipment, net, recorded at fair value [2] 0    
Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Assets      
Total property and equipment, net, recorded at fair value [2] 380,734    
Not Designated as Hedging Instrument [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]      
Assets      
Derivative Assets, Fair Value, Gross Asset 0 [3]   0 [4]
Liabilities      
Derivative Liability, Fair Value, Gross Liability 0 [3]   0 [4]
Not Designated as Hedging Instrument [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]      
Assets      
Derivative Assets, Fair Value, Gross Asset 508,901 [3]   75,808 [4]
Liabilities      
Derivative Liability, Fair Value, Gross Liability (15,479) [3]   (54,290) [4]
Not Designated as Hedging Instrument [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]      
Assets      
Derivative Assets, Fair Value, Gross Asset 0 [3]   0 [4]
Liabilities      
Derivative Liability, Fair Value, Gross Liability $ 0 [3]   $ 0 [4]
Measurement Input, Discount Rate [Member] | Fair Value, Nonrecurring [Member]      
Oil and Gas Property [Abstract]      
Present value calculation discount rate 11.00%    
[1]
(1) 
These impairments related to actual and anticipated lease expirations, as well as actual and anticipated losses on acreage due to title defects, changes in development plans, and other inherent acreage risks. The balances in the unproved oil and gas properties line item on the accompanying balance sheets as of March 31, 2020, and December 31, 2019, are recorded at carrying value.
[2]
(2) 
This represents a non-financial asset that is measured at fair value on a nonrecurring basis.
[3]
(1) 
This represents a financial asset or liability that is measured at fair value on a recurring basis.
[4]
(1) 
This represents a financial asset or liability that is measured at fair value on a recurring basis.