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Equity Method Investments - Equity Method Investments (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
Dec. 31, 2013
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]                          
ADES equity earnings (loss)   $ 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  
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]                          
Equity method investments   3,959,000       17,232,000       3,959,000 17,232,000    
Earnings from equity method investments   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  
Purchase of and contributions to equity method investments                   223,000 2,398,000 6,631,000  
Distributions from equity method investees, return on investment                   7,900,000 5,019,000 2,509,000  
Included in Investing Cash Flows                   38,250,000 8,651,000 43,584,000  
Tinuum Group                          
Equity Method Investment, Summarized Financial Information [Abstract]                          
Current assets   24,584,000       40,860,000       24,584,000 40,860,000    
Non-current assets   83,621,000       90,725,000       83,621,000 90,725,000    
Current liabilities   43,117,000       60,987,000       43,117,000 60,987,000    
Non-current liabilities   11,456,000       9,412,000       11,456,000 9,412,000    
Redeemable Class B equity   18,250,000       30,448,000       18,250,000 30,448,000    
Members deficit attributable to Class A members   26,475,000       25,175,000       26,475,000 25,175,000    
Noncontrolling interests   8,907,000       5,563,000       8,907,000 5,563,000    
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]                          
Gross profit                   92,305,000 108,416,000 89,098,000  
Operating, selling, general and administrative expenses                   23,662,000 23,405,000 21,501,000  
Income (loss) from operations                   68,643,000 85,011,000 67,597,000  
Other expenses                   (8,775,000) (2,203,000) (1,830,000)  
Class B preferred return                   (3,901,000) (6,157,000) (8,707,000)  
Loss attributable to noncontrolling interest                   27,234,000 10,675,000 11,023,000  
Net income (loss)                   83,201,000 87,326,000 68,083,000  
ADES equity earnings (loss)                   41,650,000 8,651,000 43,584,000  
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]                          
Equity method investments   0       0       0 0 0 $ 0
Earnings from equity method investments                   41,650,000 8,651,000 43,584,000  
Purchase of and contributions to equity method investments                   0 0 3,153,000  
Distributions from equity method investees, return on investment         $ 3,400,000         3,400,000 0 0  
Distributions from equity method investees in excess of cumulative earnings                   38,250,000 8,651,000 43,584,000  
Included in Investing Cash Flows                   9,894,000 3,263,000 29,877,000  
Tinuum Services                          
Equity Method Investment, Summarized Financial Information [Abstract]                          
Current assets   278,001,000       186,959,000       278,001,000 186,959,000    
Non-current assets   3,426,000       3,704,000       3,426,000 3,704,000    
Current liabilities   97,093,000       92,675,000       97,093,000 92,675,000    
Non-current liabilities   1,488,000       1,366,000       1,488,000 1,366,000    
Equity   7,918,000       7,935,000       7,918,000 7,935,000    
Noncontrolling interests   174,928,000       88,687,000       174,928,000 88,687,000    
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]                          
Gross profit                   (54,644,000) (42,496,000) (22,168,000)  
Operating, selling, general and administrative expenses                   134,782,000 161,456,000 102,757,000  
Income (loss) from operations                   (189,426,000) (203,952,000) (124,925,000)  
Other expenses                   (56,000) (118,000) (62,000)  
Loss attributable to noncontrolling interest                   198,464,000 213,746,000 132,237,000  
Net income (loss)                   8,982,000 9,676,000 7,250,000  
ADES equity earnings (loss)                   4,491,000 4,838,000 3,625,000  
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]                          
Equity method investments   3,959,000       3,968,000       3,959,000 3,968,000    
Earnings from equity method investments                   4,491,000 4,838,000 3,625,000  
Distributions from equity method investees, return on investment                   4,500,000 5,019,000 2,509,000  
RCM6, LLC (RCM6)                          
Equity Method Investment, Summarized Financial Information [Abstract]                          
Current assets   0       12,240,000       0 12,240,000    
Non-current assets   0       2,472,000       0 2,472,000    
Current liabilities   0       1,489,000       0 1,489,000    
Non-current liabilities   0       7,649,000       0 7,649,000    
Equity   0       5,574,000       0 5,574,000    
Equity Method Investment, Summarized Financial Information, Income Statement [Abstract]                          
Gross profit $ (555,000)                   (7,877,000) (8,257,000)  
Operating, selling, general and administrative expenses 360,000                   2,178,000 2,123,000  
Income (loss) from operations (915,000)                   (10,055,000) (10,380,000)  
Other expenses (52,000)                   (641,000) (666,000)  
Net income (loss) (967,000)                   (10,696,000) (11,046,000)  
ADES equity earnings (loss) (557,000)                 (557,000) (4,568,000) (4,497,000)  
Equity Method Investment, Financial Statement, Reported Amounts [Abstract]                          
Equity method investments   $ 0       $ 13,264,000       0 13,264,000    
Earnings from equity method investments $ (557,000)                 (557,000) (4,568,000) (4,497,000)  
Purchase of and contributions to equity method investments                   $ 223,000 $ 2,398,000 $ 3,478,000