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Equity - Narrative (Details)
9 Months Ended
Sep. 23, 2016
shares
Aug. 23, 2016
shares
Aug. 18, 2016
shares
Aug. 01, 2016
shares
Jul. 15, 2016
shares
Jun. 08, 2016
shares
May 25, 2016
shares
May 18, 2016
shares
May 04, 2016
shares
Apr. 01, 2016
shares
Feb. 03, 2016
shares
Dec. 31, 2015
shares
May 04, 2015
shares
Sep. 30, 2016
Class of Stock [Line Items]                            
Number of shares of common stock exchanged           500,000       1,725,000 1,000,000      
Conversion of stock exchange ratio                           1
Common Class A                            
Class of Stock [Line Items]                            
Conversion of stock exchange ratio           1,000       1,000 1      
Common Stock                            
Class of Stock [Line Items]                            
Number of shares of common stock distributed of holders 383   3,019   23,030   5,000 43,683 77,814     21,430 97,193  
Restricted Stock Units                            
Class of Stock [Line Items]                            
Number of shares vested 580   4,166   32,704   5,000 53,853 101,210     29,500 118,629  
Restricted Stock Units | Common Stock                            
Class of Stock [Line Items]                            
Number of shares of common stock withheld 197   1,147   9,674     10,170 23,396     8,070 21,436  
Provider Companies | Common Class B                            
Class of Stock [Line Items]                            
Number of shares issued for acquisition (shares)       699,742                    
Major Energy Purchase Agreement | Common Class B                            
Class of Stock [Line Items]                            
Number of shares issued for acquisition (shares)   2,000,000