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Revenue Recognition - Disaggregated Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 31, 2020
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 355,459 | $ 387,798
Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 355,459 | 387,798
E&P |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 282,698 | 331,387
E&P | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 282,698 | 331,387
E&P | Crude oil revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 185,818 | 212,793
E&P | Purchased crude oil sales |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 36,716 | 85,757
E&P | Natural gas and NGL revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 59,643 | 26,335
E&P | Purchased natural gas sales |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 295 | 521
E&P | Other services revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 226 | 5,981
Midstream Total |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 114,117 | 124,955
Midstream Total | Operating Segments |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 72,761 | 56,411
Midstream Total | Purchased crude oil sales |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 11,449 | 0
Midstream Total | Crude oil, natural gas and NGL revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 22,225 | 26,921
Midstream Total | Produced and flowback water revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 7,410 | 11,251
Midstream Total | Total midstream service revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 29,635 | 38,172
Midstream Total | Crude oil, natural gas and NGL revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 31,181 | 16,039
Midstream Total | Freshwater revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 496 | 2,200
Midstream Total | Total midstream product revenues |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ 43,126 | $ 18,239

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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