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Equity Method Investments (Tables) | 12 Months Ended
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Dec. 31, 2016
Equity Method Investments and Joint Ventures [Abstract] |
Equity Method Investments | The following tables summarize the assets and liabilities and results of operations of RCM6 for balance sheet dates and periods ended in which the Company owned a 24.95% membership interest:
|  | As of December 31,
(in thousands) |  | 2016 |  | 2015
Current assets |  | $ | — |  |  | $ | 12,240 |
Non-current assets |  | $ | — |  |  | $ | 2,472 |
Current liabilities |  | $ | — |  |  | $ | 1,489 |
Non-current liabilities |  | $ | — |  |  | $ | 7,649 |
Equity |  | $ | — |  |  | $ | 5,574 |
|  | January 1 - March 3, |  | Year ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Gross loss |  | $ | (555 | ) |  | $ | (7,877 | ) |  | $ | (8,257 | )
Operating, selling, general and administrative expenses |  | 360 |  |  | 2,178 |  |  | 2,123 |
Loss from operations |  | (915 | ) |  | (10,055 | ) |  | (10,380 | )
Other expenses |  | (52 | ) |  | (641 | ) |  | (666 | )
Net loss |  | $ | (967 | ) |  | $ | (10,696 | ) |  | $ | (11,046 | )
ADES equity loss from RCM6 |  | $ | (557 | ) |  | $ | (4,568 | ) |  | $ | (4,497 | )
The following table details the components of the Company's respective earnings or loss from equity method investments included within the Earnings from equity method investments line item on the Consolidated Statements of Operations:
|  | Year ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Earnings from Tinuum Group |  | $ | 41,650 |  |  | $ | 8,651 |  |  | $ | 43,584 |
Earnings from Tinuum Services |  | 4,491 |  |  | 4,838 |  |  | 3,625 |
Loss from RCM6 |  | (557 | ) |  | (4,568 | ) |  | (4,497 | )
Earnings from equity method investments |  | $ | 45,584 |  |  | $ | 8,921 |  |  | $ | 42,712 |
The following table details the components of additional cash investments related to the Company's respective equity method investments included within the Consolidated Statements of Cash Flows:
|  | Year ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Purchase of RCM6 interest from Tinuum Group |  | $ | — |  |  | $ | — |  |  | $ | 3,153 |
Contributions to RCM6 |  | 223 |  |  | 2,398 |  |  | 3,478 |
Purchase of and contributions to equity method investments |  | $ | 223 |  |  | $ | 2,398 |  |  | $ | 6,631 |
The following table details the components of the cash distributions from the Company's respective equity method investments included within the Consolidated Statements of Cash Flows. Distributions from equity method investees are reported on the Consolidated Statements of Cash Flows as “return on investment” within Operating cash flows until such time as the carrying value in an equity method investee company is reduced to zero; thereafter, such distributions are reported as “distributions in excess of cumulative earnings” within Investing cash flows.
|  | Year ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Distributions from equity method investees, return on investment |  |  |  |  |  |
Tinuum Group (1) |  | $ | 3,400 |  |  | $ | — |  |  | $ | — |
Tinuum Services |  | $ | 4,500 |  |  | $ | 5,019 |  |  | $ | 2,509 |
Included in Operating Cash Flows |  | $ | 7,900 |  |  | $ | 5,019 |  |  | $ | 2,509 |
Distributions from equity method investees in excess of cumulative earnings |  |  |  |  |  |
Tinuum Group |  | $ | 38,250 |  |  | $ | 8,651 |  |  | $ | 43,584 |
Included in Investing Cash Flows |  | $ | 38,250 |  |  | $ | 8,651 |  |  | $ | 43,584 |
(1) During the three months ended March 31, 2016, the Company's cumulative share of pro-rata Tinuum Group income exceeded the amount of its cumulative income recognized due to cash being distributed. As such, the Company recognized $3.4 million as "return on investment". The following table details the carrying value of the Company's respective equity method investments included within the Equity method investments line item on the Consolidated Balance Sheets and indicates the Company's maximum exposure to loss:
|  | As of December 31,
(in thousands) |  | 2016 |  | 2015
Equity method investment in Tinuum Group |  | $ | — |  |  | $ | — |
Equity method investment in Tinuum Services |  | 3,959 |  |  | 3,968 |
Equity method investment in RCM6 |  | — |  |  | 13,264 |
Total equity method investments |  | $ | 3,959 |  |  | $ | 17,232 |
The following tables summarize the assets, liabilities and results of operations of Tinuum Group:
|  | As of December 31,
(in thousands) |  | 2016 |  | 2015
Current assets |  | $ | 24,584 |  |  | $ | 40,860 |
Non-current assets |  | $ | 83,621 |  |  | $ | 90,725 |
Current liabilities |  | $ | 43,117 |  |  | $ | 60,987 |
Non-current liabilities |  | $ | 11,456 |  |  | $ | 9,412 |
Redeemable Class B equity |  | $ | 18,250 |  |  | $ | 30,448 |
Members deficit attributable to Class A members |  | $ | 26,475 |  |  | $ | 25,175 |
Noncontrolling interests |  | $ | 8,907 |  |  | $ | 5,563 |
|  | Years Ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Gross profit |  | $ | 92,305 |  |  | $ | 108,416 |  |  | $ | 89,098 |
Operating, selling, general and administrative expenses |  | 23,662 |  |  | 23,405 |  |  | 21,501 |
Income from operations |  | 68,643 |  |  | 85,011 |  |  | 67,597 |
Other expenses |  | (8,775 | ) |  | (2,203 | ) |  | (1,830 | )
Class B preferred return |  | (3,901 | ) |  | (6,157 | ) |  | (8,707 | )
Loss attributable to noncontrolling interest |  | 27,234 |  |  | 10,675 |  |  | 11,023 |
Net income available to Class A members |  | $ | 83,201 |  |  | $ | 87,326 |  |  | $ | 68,083 |
ADES equity earnings from Tinuum Group |  | $ | 41,650 |  |  | $ | 8,651 |  |  | $ | 43,584 |
The following tables summarize the assets, liabilities and results of operations of Tinuum Services:
|  | As of December 31,
(in thousands) |  | 2016 |  | 2015
Current assets |  | $ | 278,001 |  |  | $ | 186,959 |
Non-current assets |  | $ | 3,426 |  |  | $ | 3,704 |
Current liabilities |  | $ | 97,093 |  |  | $ | 92,675 |
Non-current liabilities |  | $ | 1,488 |  |  | $ | 1,366 |
Equity |  | $ | 7,918 |  |  | $ | 7,935 |
Noncontrolling interests |  | $ | 174,928 |  |  | $ | 88,687 |
|  | Years Ended December 31,
(in thousands) |  | 2016 |  | 2015 |  | 2014
Gross loss |  | $ | (54,644 | ) |  | $ | (42,496 | ) |  | $ | (22,168 | )
Operating, selling, general and administrative expenses |  | 134,782 |  |  | 161,456 |  |  | 102,757 |
Loss from operations |  | (189,426 | ) |  | (203,952 | ) |  | (124,925 | )
Other expenses |  | (56 | ) |  | (118 | ) |  | (62 | )
Loss attributable to noncontrolling interest |  | 198,464 |  |  | 213,746 |  |  | 132,237 |
Net income |  | $ | 8,982 |  |  | $ | 9,676 |  |  | $ | 7,250 |
ADES equity earnings from Tinuum Services |  | $ | 4,491 |  |  | $ | 4,838 |  |  | $ | 3,625 |
The following table presents the Company's investment balance, equity earnings and cash distributions in excess of the investment balance for the years ended December 31, 2014 through December 31, 2016 (in thousands):
Description |  | Date(s) |  | Investment balance |  | ADES equity earnings (loss) |  | Cash distributions |  | Memorandum Account: Cash distributions and equity loss in (excess) of investment balance
Beginning balance |  | 12/31/2013 |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | (12,906 | )
ADES proportionate share of net income from Tinuum Group (1) |  | 2014 activity |  | 26,613 |  |  | 26,613 |  |  | — |  |  | — |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  | 2014 activity |  | (12,906 | ) |  | (12,906 | ) |  | — |  |  | 12,906 |
Cash distributions from Tinuum Group |  | 2014 activity |  | (43,584 | ) |  | — |  |  | 43,584 |  |  | — |
Adjustment for current year cash distributions in excess of investment balance |  | 2014 activity |  | 29,877 |  |  | 29,877 |  |  | — |  |  | (29,877 | )
Total investment balance, equity earnings (loss) and cash distributions |  | 12/31/2014 |  | $ | — |  |  | $ | 43,584 |  |  | $ | 43,584 |  |  | $ | (29,877 | )
ADES proportionate share of net income from Tinuum Group (1) |  | 2015 activity |  | $ | 35,265 |  |  | $ | 35,265 |  |  | $ | — |  |  | $ | — |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  | 2015 activity |  | (29,877 | ) |  | (29,877 | ) |  | — |  |  | 29,877 |
Cash distributions from Tinuum Group |  | 2015 activity |  | (8,651 | ) |  | — |  |  | 8,651 |  |  | — |
Adjustment for current year cash distributions in excess of investment balance |  | 2015 activity |  | 3,263 |  |  | 3,263 |  |  | — |  |  | (3,263 | )
Total investment balance, equity earnings (loss) and cash distributions |  | 12/31/2015 |  | $ | — |  |  | $ | 8,651 |  |  | $ | 8,651 |  |  | $ | (3,263 | )
ADES proportionate share of net income from Tinuum Group (1) |  | 2016 activity |  | $ | 35,019 |  |  | $ | 35,019 |  |  | $ | — |  |  | $ | — |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  | 2016 activity |  | (3,263 | ) |  | (3,263 | ) |  | — |  |  | 3,263 |
Cash distributions from Tinuum Group |  | 2016 activity |  | (41,650 | ) |  | — |  |  | 41,650 |  |  | — |
Adjustment for current year cash distributions in excess of investment balance |  | 2016 activity |  | 9,894 |  |  | 9,894 |  |  | — |  |  | (9,894 | )
Total investment balance, equity earnings and cash distributions |  | 12/31/2016 |  | $ | — |  |  | $ | 41,650 |  |  | $ | 41,650 |  |  | $ | (9,894 | )
(1) The amounts of the Company's 42.5% proportionate share of net income as shown in the table above differ from mathematical calculations of the Company’s 42.5% equity interest in Tinuum Group multiplied by the amounts of Net Income available to Class A members as shown in the table above of Tinuum Group's results of operations due to adjustments related to the Class B preferred return and the elimination of Tinuum Group's earnings attributable to RCM6, of which the Company owned 24.95% during the years ended December 31, 2015 and 2014 and for the period from January 1 through March 3, 2016. As noted below, the Company sold its interest in RCM6 on March 3, 2016.

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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=66011266&loc=d3e33918-111571 + Details
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