Annual report pursuant to Section 13 and 15(d)

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

v3.7.0.1
Nature of Operations - Reconciling Income to Continuing Operations (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Segment Reporting [Abstract]      
Operating income (loss) $ 18.9 $ (14.0) $ 21.8
Interest expense 1.5 0.0 0.0
Other expense, net 5.8 3.6 4.4
Income (loss) from continuing operations before income taxes $ 11.6 $ (17.6) $ 17.4