Annual report pursuant to Section 13 and 15(d)

Nature of Operations - Reconciling Income to Continuing Operations (Details)

v3.8.0.1
Nature of Operations - Reconciling Income to Continuing Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Segment Reporting [Abstract]      
Operating income (loss) $ (47.0) $ 18.9 $ (14.0)
Interest expense 2.8 1.5 0.0
Other expense, net 0.2 5.8 3.6
(Loss) income from continuing operations before income taxes $ (50.0) $ 11.6 $ (17.6)