Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities (Schedule of Cash Paid (Received) (Details)

v3.20.1
Derivative Instruments and Hedging Activities (Schedule of Cash Paid (Received) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Cash flows from operating activities    
Cash received (paid) for commodity derivative settlements $ 2,613 $ (290)
Not Designated as Hedging Instrument | Gain on contingent consideration arrangements    
Cash flows from investing activities    
Net cash paid for settlements of contingent consideration arrangements (40,000) 0
Crude Oil [Member] | Not Designated as Hedging Instrument    
Cash flows from operating activities    
Cash received (paid) for commodity derivative settlements (1,777) (1,542)
Commodity - Natural gas | Not Designated as Hedging Instrument    
Cash flows from operating activities    
Cash received (paid) for commodity derivative settlements $ 4,390 $ 1,252