Acquisition (Period Measurement Adjustments) (Details) - Nexus - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2015 |
Jun. 30, 2015 |
Mar. 31, 2015 |
Dec. 31, 2015 |
|
| Acquisition | ||||
| Net change to goodwill | $ 0.2 | |||
| Business Acquisitions Pro Forma Cost of Revenue | $ 0.2 | $ (0.1) | $ (0.1) | |