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Equity Method Investments - Rollforward of CCS Investment (Details) - USD ($) | 2 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 03, 2016 | Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Feb. 10, 2014
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ 17,232,000 |  |  |  | $ 17,232,000 |  |  |  |  | $ 17,232,000 |  |  |
Cash distributions from Tinuum Group |  | $ (15,518,000) | $ (10,735,000) | $ (13,754,000) | (5,577,000) | $ (3,788,000) | $ 41,000 | $ (4,860,000) | $ (314,000) | (45,584,000) | $ (8,921,000) | $ (42,712,000) |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  |  |  |  |  |  | 38,250,000 | 8,651,000 | 43,584,000 |
Total investment balance, equity earnings (loss) and cash distributions |  | 3,959,000 |  |  |  | 17,232,000 |  |  |  | 3,959,000 | 17,232,000 |  |
Tinuum Group |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0 | 0 |
ADES proportionate share of income from CCS |  |  |  |  |  |  |  |  |  | 35,019,000 | 35,265,000 | 26,613,000 |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  |  |  |  |  |  |  |  |  | (3,263,000) | (29,877,000) | (12,906,000) |
Cash distributions from Tinuum Group |  |  |  |  |  |  |  |  |  | (41,650,000) | (8,651,000) | (43,584,000) |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  |  |  |  |  |  | 9,894,000 | 3,263,000 | 29,877,000 |
Total investment balance, equity earnings (loss) and cash distributions |  | $ 0 |  |  |  | $ 0 |  |  |  | $ 0 | $ 0 | 0 |
Ownership interest, percent |  | 42.50% |  |  |  | 42.50% |  |  |  | 42.50% | 42.50% |  |
Ownership interest multiplied by net income available to members, percent |  | 42.50% |  |  |  |  |  |  |  | 42.50% |  |  |
Tinuum Group | ADES equity earnings (loss) |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 8,651,000 |  |  |  | 8,651,000 |  |  |  | 43,584,000 | $ 8,651,000 | $ 43,584,000 | 0 |
ADES proportionate share of income from CCS |  |  |  |  |  |  |  |  |  | 35,019,000 | 35,265,000 | 26,613,000 |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  |  |  |  |  |  |  |  |  | (3,263,000) | (29,877,000) | (12,906,000) |
Cash distributions from Tinuum Group |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  |  |  |  |  |  | 9,894,000 | 3,263,000 | 29,877,000 |
Total investment balance, equity earnings (loss) and cash distributions |  | $ 41,650,000 |  |  |  | $ 8,651,000 |  |  |  | 41,650,000 | 8,651,000 | 43,584,000 |
Tinuum Group | Cash distributions |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 8,651,000 |  |  |  | 8,651,000 |  |  |  | 43,584,000 | 8,651,000 | 43,584,000 | 0 |
ADES proportionate share of income from CCS |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Cash distributions from Tinuum Group |  |  |  |  |  |  |  |  |  | 41,650,000 | 8,651,000 | 43,584,000 |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Total investment balance, equity earnings (loss) and cash distributions |  | 41,650,000 |  |  |  | 8,651,000 |  |  |  | 41,650,000 | 8,651,000 | 43,584,000 |
Tinuum Group | Memo Account: Cash distributions and equity loss in (excess) of investment balance |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | (3,263,000) |  |  |  | (3,263,000) |  |  |  | $ (29,877,000) | (3,263,000) | (29,877,000) | (12,906,000) |
ADES proportionate share of income from CCS |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Recovery of cash distributions in excess of investment balance (prior to cash distributions) |  |  |  |  |  |  |  |  |  | 3,263,000 | 29,877,000 | 12,906,000 |
Cash distributions from Tinuum Group |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  |  |  |  |  |  | (9,894,000) | (3,263,000) | (29,877,000) |
Total investment balance, equity earnings (loss) and cash distributions |  | 9,894,000 |  |  |  | (3,263,000) |  |  |  | 9,894,000 | (3,263,000) | (29,877,000) |
RCM6, LLC (RCM6) |  |  |  |  |  |  |  |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 13,264,000 |  |  |  | $ 13,264,000 |  |  |  |  | 13,264,000 |  |  |
Cash distributions from Tinuum Group | $ 557,000 |  |  |  |  |  |  |  |  | 557,000 | 4,568,000 | $ 4,497,000 |
Total investment balance, equity earnings (loss) and cash distributions |  | $ 0 |  |  |  | $ 13,264,000 |  |  |  | $ 0 | $ 13,264,000 |  |
Ownership interest, percent |  | 24.95% |  |  |  |  |  |  |  | 24.95% |  |  | 24.95%

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