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Segment Information | 9 Months Ended
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Sep. 30, 2017
Segment Reporting [Abstract] |
Segment Information | Segment Information The Company identifies a business as an operating segment if: i) it engages in business activities from which it may earn revenues and incur expenses; ii) its operating results are regularly reviewed by the Chief Operating Decision Maker (“CODM”), who is the Company’s Chief Executive Officer, to make decisions about resources to be allocated to the segment and assess its performance; and iii) it has available discrete financial information. The Company has determined that its two underground mining operations are its operating segments. The CODM reviews financial information at the operating segment level to allocate resources and to assess the operating results and financial performance for each operating segment. Operating segments are aggregated into a reportable segment if the operating segments have similar quantitative economic characteristics and if the operating segments are similar in the following qualitative characteristics: i) nature of products and services; ii) nature of production processes; iii) type or class of customer for their products and services; iv) methods used to distribute the products or provide services; and v) if applicable, the nature of the regulatory environment. The Company has determined that the two operating segments are similar in both quantitative and qualitative characteristics and thus the two operating segments have been aggregated into one reportable segment. The Company has determined that its natural gas and royalty businesses did not meet the criteria in ASC 280 to be considered as operating or reportable segments. Therefore, the Company has included their results in an “all other” category as a reconciling item to consolidated amounts. The Company does not allocate all of its assets, or its depreciation and depletion expense, selling, general and administrative expenses, other post-retirement benefits, transactions costs, restructuring costs, interest expense, reorganization items, net and income tax expense by segment. The following tables include reconciliations of segment information to consolidated amounts (in thousands):
| Successor |  |  |  |  | Predecessor
| For the three months ended September 30, |  | For the nine months ended September 30, |  | For the six months ended September 30, |  |  | For the three months ended March 31,
| 2017 |  | 2016 |  | 2017 |  | 2016 |  |  | 2016
Revenues |  |  |  |  |  |  |  |  |  |
Mining | $ | 302,958 |  |  | $ | 44,395 |  |  | $ | 895,802 |  |  | $ | 129,810 |  |  |  | $ | 65,154 |
All other | 8,997 |  |  | 8,496 |  |  | 33,487 |  |  | 14,555 |  |  |  | 6,229 |
Total revenues | $ | 311,955 |  |  | $ | 52,891 |  |  | $ | 929,289 |  |  | $ | 144,365 |  |  |  | $ | 71,383 |
| Successor |  |  |  |  | Predecessor
| For the three months ended September 30, |  | For the nine months ended September 30, |  | For the six months ended September 30, |  |  | For the three months ended March 31,
| 2017 |  | 2016 |  | 2017 |  | 2016 |  |  | 2016
Capital Expenditures |  |  |  |  |  |  |  |  |  |
Mining | 34,125 |  |  | $ | 2,081 |  |  | $ | 60,647 |  |  | $ | 7,424 |  |  |  | $ | 4,588 |
All other | 283 |  |  | 354 |  |  | 2,024 |  |  | 1,025 |  |  |  | 834 |
Total capital expenditures | 34,408 |  |  | $ | 2,435 |  |  | $ | 62,671 |  |  | $ | 8,449 |  |  |  | $ | 5,422 |
The Company evaluates the performance of its segment based on Segment Adjusted EBITDA, which is defined as net income (loss) adjusted for other revenues, cost of other revenues, depreciation and depletion, selling, general and administrative, other postretirement benefits, and certain transactions or adjustments that the CODM does not consider for the purposes of making decisions to allocate resources among segments or assessing segment performance. Segment Adjusted EBITDA does not represent and should not be considered as an alternative to cost of sales under GAAP and may not be comparable to other similarly titled measures used by other companies. Below is a reconciliation of Segment Adjusted EBITDA to net income (loss), which is its most directly comparable financial measure calculated and presented in accordance with GAAP (in thousands):
| Successor |  |  |  |  | Predecessor
| For the three months ended September 30, |  | For the nine months ended September 30, |  | For the six months ended September 30, |  |  | For the three months ended March 31,
| 2017 |  | 2016 |  | 2017 |  | 2016 |  |  | 2016
Segment Adjusted EBITDA | $ | 113,394 |  |  | $ | (7,392 | ) |  | $ | 439,942 |  |  | $ | (25,843 | ) |  |  | $ | (7,143 | )
Other revenues | 8,997 |  |  | 8,496 |  |  | 33,487 |  |  | 14,555 |  |  |  | 6,229 |
Cost of other revenues | (6,985 | ) |  | (6,998 | ) |  | (22,959 | ) |  | (12,124 | ) |  |  | (4,698 | )
Depreciation and depletion | (23,393 | ) |  | (22,538 | ) |  | (57,625 | ) |  | (38,359 | ) |  |  | (28,958 | )
Selling, general and administrative | (9,243 | ) |  | (4,516 | ) |  | (23,073 | ) |  | (10,331 | ) |  |  | (9,008 | )
Other postretirement benefits | — |  |  | — |  |  | — |  |  | — |  |  |  | (6,160 | )
Restructuring charges | — |  |  | — |  |  | — |  |  | — |  |  |  | (3,418 | )
Transaction and other costs | — |  |  | — |  |  | (12,873 | ) |  | (10,475 | ) |  |  | — |
Interest expense, net | (640 | ) |  | (694 | ) |  | (1,890 | ) |  | (1,128 | ) |  |  | (16,562 | )
Reorganization items, net | — |  |  | — |  |  | — |  |  | — |  |  |  | 7,920 |
Income tax benefit (expense) | 37,587 |  |  | — |  |  | 2,881 |  |  | — |  |  |  | (18 | )
Net income (loss) | $ | 119,717 |  |  | $ | (33,642 | ) |  | $ | 357,890 |  |  | $ | (83,705 | ) |  |  | $ | (61,816 | )

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8981-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8971-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8595-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8380-108599 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8984-108599 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9031-108599 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9054-108599 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8538-108599 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 29 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8864-108599 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8924-108599 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 + Details
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