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Equity Investment (Tables) | 12 Months Ended
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Dec. 31, 2015
Equity Method Investments and Joint Ventures [Abstract] |
Schedule of Summarized Financial Information | Our equity in the earnings of Ciner Wyoming is summarized as follows (in thousands):
| For the Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Income allocation to NRP’s equity interests | $ | 54,709 |  |  | $ | 47,354 |  |  | $ | 37,036 |
Amortization of basis difference | (4,791 | ) |  | (5,938 | ) |  | (2,850 | )
Equity in earnings of unconsolidated investment | $ | 49,918 |  |  | $ | 41,416 |  |  | $ | 34,186 |
The results of Ciner Wyoming’s operations are summarized as follows (in thousands):
| For the Year Ended December 31,
| 2015 |  | 2014 |  | 2013
Sales | $ | 486,393 |  |  | $ | 465,032 |  |  | $ | 442,132 |
Gross profit | 131,493 |  |  | 118,439 |  |  | 94,299 |
Net Income | 111,650 |  |  | 96,640 |  |  | 79,655 |
The financial position of Ciner Wyoming is summarized as follows (in thousands):
| For the Year Ended December 31,
| 2015 |  | 2014
Current assets | $ | 144,695 |  |  | $ | 179,851 |
Noncurrent assets | 233,845 |  |  | 223,053 |
Current liabilities | 43,018 |  |  | 47,704 |
Noncurrent liabilities | 116,808 |  |  | 149,192 |

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- Definition Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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