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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]        
Acquisition adjustment for goodwill     $ 0.6  
Acquisition adjustment for intangibles     0.7  
Intangible asset amortization expense $ 1.7 $ 0.2 $ 5.5 $ 0.8