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v3.20.2

Impairments of Property, Equipment, Goodwill and Intangible Assets (Narrative) (Details) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2020 USD ($) segment property | Sep. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Dec. 31, 2019 USD ($)
Impairment of property and equipment | $ 417,384,000 |  |  |
Property and equipment, net | 5,193,378,000 |  |  | $ 5,516,347,000
Intangible assets, net | 1,127,279,000 |  |  | $ 1,163,063,000
Impairment of intangible assets | 0 |  |  |
Adjustments to contingent consideration | $ 16,852,000 | $ 1,466,000 |  |
Number of geographic operating segments | segment | 5 |  |  |
E&P [Member] |  |  |  |
Decline in revenue from prior year period | $ 75,158,000 |  |  |
Exploration and Production [Member] |  |  |  |
Impairment of property and equipment | 417,384,000 |  |  |
Adjustments to contingent consideration | $ (4,145,000) |  |  |
Contingent consideration |  |  | $ 0 |
Exploration and Production [Member] | Valuation Technique, Discounted Cash Flow [Member] |  |  |  |
Number of landfills impaired | property | 4 |  |  |
Impairment charge if estimated annual cash flows was changed by ten percent | $ 3,000,000 |  |  |
Exploration and Production [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] |  |  |  |
Derivative Asset (Liability) Net, Measurement Input |  |  | 0.12 |
Exploration and Production [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Expected Term [Member] |  |  |  |
Derivative Asset (Liability) Net, Measurement Input |  |  | 40 |
Exploration and Production [Member] | Four Landfill [Member] |  |  |  |
Intangible assets, net |  |  | $ 0 |
Exploration and Production [Member] | Certain Basins [Member] |  |  |  |
Percentage decline in revenue from prior year period | 72.00% |  |  |

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