Goodwill and Intangible Assets (Nexus acquisition) (Details 2) - Nexus - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2015
Sep. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Measurement Period Adjustments        
ProForma increase (decrease) in cost of revenue   $ 0.2 $ (0.1) $ (0.1)
Net change to goodwill $ 0.2