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Discontinued operations (Tables) | 3 Months Ended
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Mar. 31, 2016
Discontinued Operations and Disposal Groups [Abstract] |
Disposal groups, including discontinued operations | The carrying amounts of the major classes of assets and liabilities that are classified as held for sale on the Company's Consolidated Balance Sheets were as follows:
| March 31, 2016 |  | March 31, 2015 |  | December 31, 2015 |
| (In thousands)
Assets |  |  |
Current assets: |  |  |
Receivables, net | $ | 3,619 |  | $ | 58,125 |  | $ | 13,387 |
Inventories | 1,308 |  | 8,526 |  | 1,308 |
Commodity derivative instruments | — |  | 7,127 |  | — |
Income taxes receivable | 50,478 |  | 12,666 |  | 9,665 |
Prepayments and other current assets | 2,348 |  | 4,761 |  | 221 |
Total current assets held for sale | 57,753 |  | 91,205 |  | 24,581 |
Noncurrent assets: |  |  |
Investments | 37 |  | 37 |  | 37 |
Net property, plant and equipment | 9,363 |  | 1,110,592 |  | 793,422 |
Deferred income taxes | 86,614 |  | — |  | 127,655 |
Other | 161 |  | 2,900 |  | 161 |
Less allowance for impairment of assets held for sale | (1,374 | ) | — |  | 754,541 |
Total noncurrent assets held for sale | 97,549 |  | 1,113,529 |  | 166,734 |
Total assets held for sale | $ | 155,302 |  | $ | 1,204,734 |  | $ | 191,315 |
Liabilities |  |  |
Current liabilities: |  |  |
Long-term debt due within one year | $ | — |  | $ | 754 |  | $ | — |
Accounts payable | 7,963 |  | 54,623 |  | 25,013 |
Taxes payable | 35 |  | 4,125 |  | 1,052 |
Deferred income taxes | 3,620 |  | 4,398 |  | 3,620 |
Accrued compensation | 761 |  | 2,891 |  | 13,080 |
Other accrued liabilities | 4,791 |  | 15,522 |  | 4,838 |
Total current liabilities held for sale | 17,170 |  | 82,313 |  | 47,603 |
Noncurrent liabilities: |  |  |
Deferred income taxes | — |  | 69,456 |  | — |
Asset retirement obligations | — |  | 53,202 |  | — |
Other liabilities | — |  | 192 |  | — |
Total noncurrent liabilities held for sale | — |  | 122,850 |  | — |
Total liabilities held for sale | $ | 17,170 |  | $ | 205,163 |  | $ | 47,603 |
Reconciliation of major classes of income and expense | The reconciliation of the major classes of income and expense constituting pretax loss from discontinued operations to the after-tax net loss from discontinued operations on the Company's Consolidated Statements of Income were as follows:
| Three Months Ended
| March 31,
| 2016 |  | 2015 |
| (In thousands)
Operating revenues | $ | 2,910 |  | $ | 54,936 |
Operating expenses | 4,470 |  | 572,952 |
Operating loss | (1,560 | ) | (518,016 | )
Other income | 6 |  | 1,881 |
Interest expense | 13 |  | 21 |
Loss from discontinued operations before income taxes | (1,567 | ) | (516,156 | )
Income taxes | (732 | ) | (191,551 | )
Loss from discontinued operations | $ | (835 | ) | $ | (324,605 | )

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- Definition Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65878427&loc=SL51721533-107759 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721665-107760 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1474-107760 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=64827811&loc=d3e1361-107760 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721683-107760 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64862545&loc=SL51724579-110230 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721675-107760 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 4A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721663-107760 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721659-107760 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5A -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721671-107760 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5D -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721677-107760 + Details
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