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Equity Method Investments - Rollforward of CCS Investment (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Mar. 31, 2017 | Jun. 30, 2016 | Mar. 31, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Equity Method Investments [Roll Forward] |  |  |  |  |  |
Beginning balance |  | $ 3,959,000 |  |  | $ 3,959,000 |
Adjustment for current year cash distributions in excess of investment balance |  |  |  |  | 22,313,000 | $ 14,875,000
Total investment balance, equity earnings (loss) and cash distributions | $ 2,739,000 |  |  |  | 2,739,000 |
Tinuum Group, LLC |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |
Beginning balance | 0 | 0 | $ 2,043,000 | $ 0 | 0 | 0
ADES proportionate share of income from Tinuum Group | 11,761,000 | 10,457,000 | 6,758,000 | 8,706,000 |  |
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions) | (11,761,000) | (9,894,000) | 0 | (3,263,000) |  |
Cash distributions from Tinuum Group | 9,138,000 | (13,175,000) | (14,875,000) | (3,400,000) |  |
Adjustment for current year cash distributions in excess of investment balance | 9,138,000 | 12,612,000 | 6,074,000 |  |  |
Total investment balance, equity earnings (loss) and cash distributions | $ 0 | 0 | $ 0 | 2,043,000 | $ 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, LLC | ADES equity earnings (loss) |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |
Beginning balance | $ 13,175,000 | 0 | $ 5,443,000 | 0 | $ 0 | $ 0
ADES proportionate share of income from Tinuum Group | 11,761,000 | 10,457,000 | 6,758,000 | 8,706,000 |  |
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions) | (11,761,000) | (9,894,000) | 0 | (3,263,000) |  |
Cash distributions from Tinuum Group | 0 |  | 0 | 0 |  |
Adjustment for current year cash distributions in excess of investment balance | 9,138,000 | 12,612,000 | 6,074,000 |  |  |
Total investment balance, equity earnings (loss) and cash distributions | 9,138,000 | 13,175,000 | 12,832,000 | 5,443,000 | 9,138,000 | 12,832,000
Tinuum Group, LLC | Cash distributions |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |
Beginning balance | 13,175,000 | 0 | 3,400,000 | 0 | 0 | 0
ADES proportionate share of income from Tinuum Group | 0 | 0 | 0 | 0 |  |
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions) | 0 | 0 | 0 | 0 |  |
Cash distributions from Tinuum Group | (9,138,000) | 13,175,000 | 14,875,000 | 3,400,000 |  |
Adjustment for current year cash distributions in excess of investment balance | 0 | 0 | 0 |  |  |
Total investment balance, equity earnings (loss) and cash distributions | 9,138,000 | 13,175,000 | 14,875,000 | 3,400,000 | 9,138,000 | 14,875,000
Tinuum Group, LLC | Memorandum Account: Cash distributions and equity loss in (excess) of investment balance |  |  |  |  |  |
Equity Method Investments [Roll Forward] |  |  |  |  |  |
Beginning balance | (12,612,000) | (9,894,000) | 0 | (3,263,000) | (9,894,000) | (3,263,000)
ADES proportionate share of income from Tinuum Group | 0 | 0 | 0 | 0 |  |
Recovery of prior cash distributions in excess of investment balance (prior to cash distributions) | 11,761,000 | 9,894,000 | 0 | 3,263,000 |  |
Cash distributions from Tinuum Group | 0 | 0 | 0 | 0 |  |
Adjustment for current year cash distributions in excess of investment balance | (9,138,000) | (12,612,000) | (6,074,000) |  |  |
Total investment balance, equity earnings (loss) and cash distributions | $ (9,989,000) | $ (12,612,000) | $ (6,074,000) | $ 0 | $ (9,989,000) | $ (6,074,000)

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