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Acquisitions and Divestitures (Tables) | 9 Months Ended
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Sep. 30, 2020
Discontinued Operations and Disposal Groups [Abstract] |
Disposal Groups, Including Discontinued Operations [Table Text Block] | A summary of discontinued operations presented in the condensed consolidated statements of income includes the following:
|  | Three Months Ended |  | Nine Months Ended
|  | September 30, |  | September 30,
(in thousands) |  | 2020 |  | 2019 (1) |  | 2020 |  | 2019 (1)
Operating revenues(1) |  | $ | 3 |  |  | $ | 34,271 |  |  | $ | 26 |  |  | $ | 152,573 |
Cost of sales(1) |  | (40) |  |  | 33,763 |  |  | (39) |  |  | 149,464 |
Other operating expenses |  | 75 |  |  | 1,360 |  |  | 272 |  |  | 4,819 |
Operating loss |  | (32) |  |  | (852) |  |  | (207) |  |  | (1,710) |
Interest and other expense |  | 6 |  |  | (74) |  |  | (23) |  |  | (242) |
Loss from Discontinued Operations before income taxes |  | (26) |  |  | (926) |  |  | (230) |  |  | (1,952) |
Gain on sale of Discontinued Operations |  | — |  |  | — |  |  | 200 |  |  | — |
Income tax benefit |  | (7) |  |  | (296) |  |  | (195) |  |  | (564) |
Gain (Loss) from Discontinued Operations, Net of Tax |  | $ | (19) |  |  | $ | (630) |  |  | $ | 165 |  |  | $ | (1,388) |
(1) Included in operating revenues and cost of sales for the three and nine months ended September 30, 2019, is $4.3 million and $19.1 million, respectively, representing amounts which had been previously eliminated in consolidation related to intercompany activity that continued with the buyers after the disposition of the assets of PESCO.
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] | The following table summarizes significant statements of cash flows data related to the discontinued operations of PESCO:
|  | Nine Months Ended September 30, 2019
In thousands |  |
Depreciation and amortization |  | $ | 437 |
Deferred income taxes |  | $ | 513 |
Realized gain on commodity contracts |  | $ | (623) |

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