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v3.3.1.900

Segment Information - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 116,063 | $ 125,479 | $ 137,630 | $ 109,677 | $ 137,273 | $ 91,609 | $ 90,561 | $ 80,309 | $ 488,849 | $ 399,752 | $ 358,117
Depreciation, depletion and amortization | 18,152 | 26,624 | 30,660 | 25,392 | 30,258 | 18,621 | 16,350 | 14,647 | 100,828 | 79,876 | 64,377
Asset impairment | 50,953 | 626,838 | 3,803 | 0 | 20,585 | 0 | 5,624 | 0 | 681,594 | 26,209 | 734
Interest expense, net |  |  |  |  |  |  |  |  | (93,809) | (80,089) | (64,158)
Net income (loss) | (21,786) | $ (600,001) | $ 32,578 | $ 17,489 | 8,645 | $ 36,173 | $ 31,407 | $ 32,605 | (571,720) | 108,830 | 172,078
Capital expenditures |  |  |  |  |  |  |  |  | 44,924 | 536,318 | 368,104
Total assets | 1,684,075 |  |  |  | 2,444,724 |  |  |  | 1,684,075 | 2,444,724 | 1,991,856
Corporate and Financing |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 0 | 0 | 0
Asset impairment |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense, net |  |  |  |  |  |  |  |  | (93,809) | (80,089) | (64,158)
Net income (loss) |  |  |  |  |  |  |  |  | (106,157) | (90,634) | (78,896)
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 0
Total assets | 15,001 |  |  |  | 16,571 |  |  |  | 15,001 | 16,571 | 12,879
Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 |  |
Coal, Hard Mineral Royalty and Other |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 156,638 | 172,160 | 213,825
Coal, Hard Mineral Royalty and Other | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 246,353 | 256,719 | 306,851
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 44,478 | 52,645 | 58,502
Asset impairment |  |  |  |  |  |  |  |  | 307,800 | 26,209 | 734
Interest expense, net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  | (138,388) | 143,678 | 211,590
Capital expenditures |  |  |  |  |  |  |  |  | 428 | 5,351 | 0
Total assets | 1,047,922 |  |  |  | 1,403,762 |  |  |  | 1,047,922 | 1,403,762 | 1,520,428
Coal, Hard Mineral Royalty and Other | Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 21 |  |
Soda Ash |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 49,918 | 41,416 | 34,186
Soda Ash | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 49,918 | 41,416 | 34,186
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 0 | 0 | 0
Asset impairment |  |  |  |  |  |  |  |  | 0 | 0 | 0
Interest expense, net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  | 49,918 | 41,416 | 34,186
Capital expenditures |  |  |  |  |  |  |  |  | 0 | 0 | 293,085
Total assets | 261,942 |  |  |  | 264,020 |  |  |  | 261,942 | 264,020 | 269,338
Soda Ash | Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 0 |  |
VantaCore |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 139,013 | 42,051 | 0
VantaCore | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 139,013 | 42,051 | 0
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 15,578 | 3,296 | 0
Asset impairment |  |  |  |  |  |  |  |  | 6,218 | 0 | 0
Interest expense, net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  | 272 | 32 | 0
Capital expenditures |  |  |  |  |  |  |  |  | 14,039 | 171,116 | 0
Total assets | 200,348 |  |  |  | 219,658 |  |  |  | 200,348 | 219,658 | 0
VantaCore | Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | (21) |  |
Oil and Gas |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 53,565 | 59,566 | 17,080
Oil and Gas | Operating Segments |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | 53,565 | 59,566 | 17,080
Depreciation, depletion and amortization |  |  |  |  |  |  |  |  | 40,772 | 23,935 | 5,875
Asset impairment |  |  |  |  |  |  |  |  | 367,576 | 0 | 0
Interest expense, net |  |  |  |  |  |  |  |  | 0 | 0 | 0
Net income (loss) |  |  |  |  |  |  |  |  | (377,365) | 14,338 | 5,198
Capital expenditures |  |  |  |  |  |  |  |  | 30,457 | 359,851 | 75,019
Total assets | $ 158,862 |  |  |  | $ 540,713 |  |  |  | 158,862 | $ 540,713 | $ 189,211
Oil and Gas | Intersegment Eliminations |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  | $ 0 |  |

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