Earnings Per Share Schedule of Earnings Per Share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Numerator:        
Net loss attributable to the Company $ (4,467) $ (6,394) $ (22,092) $ (30,179)
Adjustments to net loss attributable to the Company (28) (118) (752) (380)
Net loss attributable to common shareholders $ (4,495) $ (6,512) $ (22,844) $ (30,559)
Restricted Stock Units (RSUs)        
Denominator:        
Anti-dilutive potential securities (in shares) 688,692 1,304,804 688,692 1,304,804
Restricted Stock        
Denominator:        
Anti-dilutive potential securities (in shares) 396,028 0 375,644 0
Common Class A        
Denominator:        
Anti-dilutive potential securities (in shares) 81,487,871 74,342,871 77,967,908 46,937,430
Common Class B        
Denominator:        
Anti-dilutive potential securities (in shares) 2,917,827 2,917,827 2,917,827 1,619,394
Class A Units        
Denominator:        
Basic and diluted weighted average common shares outstanding (in shares)   38,471,610   37,581,521
Basic and diluted (in dollars per share)   $ (0.17)   $ (0.81)
Common Class A        
Numerator:        
Net loss attributable to common shareholders $ (4,493) $ (6,508) $ (22,833) $ (30,545)
Denominator:        
Basic and diluted weighted average common shares outstanding (in shares) 62,946,348 38,471,610 51,024,766 37,581,521
Basic and diluted (in dollars per share) $ (0.07)   $ (0.45)  
Common Class B        
Numerator:        
Net loss attributable to common shareholders $ (2) $ (4) $ (10) $ (14)
Denominator:        
Basic and diluted weighted average common shares outstanding (in shares) 81,463,433 74,320,575 77,944,525 41,228,932
Basic and diluted (in dollars per share) $ 0.00 $ 0.00 $ 0.00 $ 0.00