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Business Segment Information (Tables) | 12 Months Ended
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Dec. 31, 2016
Segment Reporting [Abstract] |
Segment Operating Results |
|  | Years Ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Revenues: |  |  |  |  |  |
Refined Coal: |  |  |  |  |  |
Earnings in equity method investments |  | $ | 45,584 |  |  | $ | 8,921 |  |  | $ | 42,712 |
Consulting services |  | — |  |  | 55 |  |  | 665 |
Royalties, related party |  | 6,125 |  |  | 10,642 |  |  | 6,410 |
|  | 51,709 |  |  | 19,618 |  |  | 49,787 |
Emissions Control: |  |  |  |  |  |
Equipment sales |  | 46,949 |  |  | 60,099 |  |  | 12,044 |
Chemicals |  | 3,025 |  |  | 888 |  |  | 391 |
Consulting services |  | 648 |  |  | 1,697 |  |  | 3,823 |
|  | 50,622 |  |  | 62,684 |  |  | 16,258 |
Total segment reporting revenues |  | $ | 102,331 |  |  | $ | 82,302 |  |  | $ | 66,045 |
Adjustments to reconcile to reported revenues: |  |  |  |  |  |
Refined Coal: |  |  |  |  |  |
Earnings in equity method investments |  | $ | (45,584 | ) |  | $ | (8,921 | ) |  | $ | (42,712 | )
Royalties, related party |  | (6,125 | ) |  | (10,642 | ) |  | (6,410 | )
|  | (51,709 | ) |  | (19,563 | ) |  | (49,122 | )
Total reported revenues |  | $ | 50,622 |  |  | $ | 62,739 |  |  | $ | 16,923 |
Segment reporting operating income (loss) |  |  |  |  |  |
Refined Coal (1) |  | $ | 51,264 |  |  | $ | 12,131 |  |  | $ | 42,094 |
Emissions Control (2) |  | 7,334 |  |  | (7,583 | ) |  | (13,348 | )
Total segment operating income |  | $ | 58,598 |  |  | $ | 4,548 |  |  | $ | 28,746 |
(1) Included within the RC segment operating income for the year ended December 31, 2016 is a $2.1 million gain on the sale of RCM6 and for the years ended December 31, 2016 and 2015, 453A interest expense of $2.5 million and $4.6 million, respectively, and interest expense related to the RCM6 note payable of $0.3 million and $2.5 million, respectively. (2) Included within the EC segment operating income for the year ended December 31, 2016 is a $0.9 million gain related to a termination of a sales-type lease.
Reconciliation of Reportable Segment Amounts to Consolidated Balances | A reconciliation of reportable segment income to the Company's consolidated net income is as follows:
|  | Years Ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Segment income |  |  |  |  |  |
Total reported segment operating income |  | $ | 58,598 |  |  | $ | 4,548 |  |  | $ | 28,746 |
Adjustments to reconcile to net income (loss) attributable to the Company |  |  |  |  |  |
Corporate payroll and benefits |  | (9,415 | ) |  | (14,842 | ) |  | (12,621 | )
Corporate rent and occupancy |  | (1,187 | ) |  | (707 | ) |  | (694 | )
Corporate legal and professional fees |  | (8,230 | ) |  | (15,199 | ) |  | (9,514 | )
Corporate general and administrative |  | (3,811 | ) |  | (3,640 | ) |  | (3,980 | )
Corporate depreciation and amortization |  | (608 | ) |  | (578 | ) |  | (354 | )
Corporate interest (expense) income, net |  | (2,334 | ) |  | 24 |  |  | 74 |
Other income (expense), net |  | 3,727 |  |  | 273 |  |  | 26 |
Income tax benefit (expense) |  | 60,938 |  |  | (20 | ) |  | (296 | )
Net income (loss) |  | $ | 97,678 |  |  | $ | (30,141 | ) |  | $ | 1,387 |
Reconciliation of Assets from Segment to Consolidated | Segment assets are as follows as of the dates presented:
|  | As of December 31,
(in thousands) |  | 2016 |  | 2015
Assets: |  |  |  |
Refined Coal |  | $ | 6,310 |  |  | $ | 19,507 |
Emissions Control |  | 24,551 |  |  | 31,467 |
All Other and Corporate |  | 76,435 |  |  | 9,801 |
Consolidated |  | $ | 107,296 |  |  | $ | 60,775 |

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- Definition Tabular disclosure of all significant reconciling items in the reconciliation of total assets from reportable segments to the entity's consolidated assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 Reference 2: 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 + Details
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- Definition Tabular disclosure of the reconciliation of profit (loss) from reportable segments to the consolidated income (loss) before income tax expense (benefit) and discontinued operations. Includes, but is not limited to, reconciliation after income tax if income tax is allocated to the reportable segment. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8906-108599 + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e8736-108599 + Details
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