Annual report pursuant to Section 13 and 15(d)

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)

v3.8.0.1
Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Valuation Allowance [Line Items]      
Continuing operations tax at statutory rate $ (17.5) $ 4.0 $ (6.2)
State income tax expense (benefit), net of federal benefit (3.7) 0.3 (0.9)
Tax on foreign and foreign-source income (1.4) (1.9) (3.6)
Research and development credits (0.7) (0.8) (0.9)
Permanent book/tax differences 0.7 0.5 0.9
Domestic production activities 0.0 (0.4) 0.0
Other 0.7 (0.1) 0.0
Total income tax expense (benefit) (8.2) 4.1 (7.3)
State      
Valuation Allowance [Line Items]      
Increase in valuation allowances on deferred foreign income tax assets 7.9 0.1 0.0
Law changes (1.1) 0.0 0.0
Federal      
Valuation Allowance [Line Items]      
Increase in valuation allowances on deferred foreign income tax assets 3.8 0.0 0.0
Law changes 0.8 0.0 0.0
Foreign      
Valuation Allowance [Line Items]      
Increase in valuation allowances on deferred foreign income tax assets $ 2.3 $ 2.4 $ 3.4