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Other Income (Notes) | 3 Months Ended
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Mar. 31, 2017
Component of Operating Income [Abstract] |
Other Income and Other Expense Disclosure [Text Block] |
| For the Three Months Ended
| March 31,
| 2017 |  | 2016
Equity in Earnings of Affiliates - CONE | $ | 11,938 |  |  | $ | 14,351 |
Rental Income | 8,842 |  |  | 9,196 |
Royalty Income - Non-Operated Coal | 8,785 |  |  | 2,230 |
Purchased Coal Sales | 3,541 |  |  | — |
Gathering Revenue | 3,153 |  |  | 2,748 |
Interest Income | 1,543 |  |  | 214 |
Right of Way Issuance | 1,001 |  |  | 15,733 |
Equity in Earnings of Affiliates - Other | 392 |  |  | 2,314 |
Other | 1,501 |  |  | 1,345 |
Miscellaneous Other Income | $ | 40,696 |  |  | $ | 48,131 |

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3,6,7,9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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